diff --git a/backend/api/go_client/pipeline.pb.go b/backend/api/go_client/pipeline.pb.go
index 0c5a5a1cfbc..942314f8cb8 100755
--- a/backend/api/go_client/pipeline.pb.go
+++ b/backend/api/go_client/pipeline.pb.go
@@ -52,7 +52,7 @@ func (m *Url) Reset()         { *m = Url{} }
 func (m *Url) String() string { return proto.CompactTextString(m) }
 func (*Url) ProtoMessage()    {}
 func (*Url) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{0}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{0}
 }
 func (m *Url) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Url.Unmarshal(m, b)
@@ -90,7 +90,7 @@ func (m *CreatePipelineRequest) Reset()         { *m = CreatePipelineRequest{} }
 func (m *CreatePipelineRequest) String() string { return proto.CompactTextString(m) }
 func (*CreatePipelineRequest) ProtoMessage()    {}
 func (*CreatePipelineRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{1}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{1}
 }
 func (m *CreatePipelineRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_CreatePipelineRequest.Unmarshal(m, b)
@@ -117,6 +117,52 @@ func (m *CreatePipelineRequest) GetPipeline() *Pipeline {
 	return nil
 }
 
+type UpdatePipelineDefaultVersionRequest struct {
+	PipelineId           string   `protobuf:"bytes,1,opt,name=pipeline_id,json=pipelineId,proto3" json:"pipeline_id,omitempty"`
+	VersionId            string   `protobuf:"bytes,2,opt,name=version_id,json=versionId,proto3" json:"version_id,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *UpdatePipelineDefaultVersionRequest) Reset()         { *m = UpdatePipelineDefaultVersionRequest{} }
+func (m *UpdatePipelineDefaultVersionRequest) String() string { return proto.CompactTextString(m) }
+func (*UpdatePipelineDefaultVersionRequest) ProtoMessage()    {}
+func (*UpdatePipelineDefaultVersionRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{2}
+}
+func (m *UpdatePipelineDefaultVersionRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_UpdatePipelineDefaultVersionRequest.Unmarshal(m, b)
+}
+func (m *UpdatePipelineDefaultVersionRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_UpdatePipelineDefaultVersionRequest.Marshal(b, m, deterministic)
+}
+func (dst *UpdatePipelineDefaultVersionRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_UpdatePipelineDefaultVersionRequest.Merge(dst, src)
+}
+func (m *UpdatePipelineDefaultVersionRequest) XXX_Size() int {
+	return xxx_messageInfo_UpdatePipelineDefaultVersionRequest.Size(m)
+}
+func (m *UpdatePipelineDefaultVersionRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_UpdatePipelineDefaultVersionRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_UpdatePipelineDefaultVersionRequest proto.InternalMessageInfo
+
+func (m *UpdatePipelineDefaultVersionRequest) GetPipelineId() string {
+	if m != nil {
+		return m.PipelineId
+	}
+	return ""
+}
+
+func (m *UpdatePipelineDefaultVersionRequest) GetVersionId() string {
+	if m != nil {
+		return m.VersionId
+	}
+	return ""
+}
+
 type GetPipelineRequest struct {
 	Id                   string   `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
@@ -128,7 +174,7 @@ func (m *GetPipelineRequest) Reset()         { *m = GetPipelineRequest{} }
 func (m *GetPipelineRequest) String() string { return proto.CompactTextString(m) }
 func (*GetPipelineRequest) ProtoMessage()    {}
 func (*GetPipelineRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{2}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{3}
 }
 func (m *GetPipelineRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_GetPipelineRequest.Unmarshal(m, b)
@@ -169,7 +215,7 @@ func (m *ListPipelinesRequest) Reset()         { *m = ListPipelinesRequest{} }
 func (m *ListPipelinesRequest) String() string { return proto.CompactTextString(m) }
 func (*ListPipelinesRequest) ProtoMessage()    {}
 func (*ListPipelinesRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{3}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{4}
 }
 func (m *ListPipelinesRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ListPipelinesRequest.Unmarshal(m, b)
@@ -230,7 +276,7 @@ func (m *ListPipelinesResponse) Reset()         { *m = ListPipelinesResponse{} }
 func (m *ListPipelinesResponse) String() string { return proto.CompactTextString(m) }
 func (*ListPipelinesResponse) ProtoMessage()    {}
 func (*ListPipelinesResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{4}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{5}
 }
 func (m *ListPipelinesResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ListPipelinesResponse.Unmarshal(m, b)
@@ -282,7 +328,7 @@ func (m *DeletePipelineRequest) Reset()         { *m = DeletePipelineRequest{} }
 func (m *DeletePipelineRequest) String() string { return proto.CompactTextString(m) }
 func (*DeletePipelineRequest) ProtoMessage()    {}
 func (*DeletePipelineRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{5}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{6}
 }
 func (m *DeletePipelineRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_DeletePipelineRequest.Unmarshal(m, b)
@@ -320,7 +366,7 @@ func (m *GetTemplateRequest) Reset()         { *m = GetTemplateRequest{} }
 func (m *GetTemplateRequest) String() string { return proto.CompactTextString(m) }
 func (*GetTemplateRequest) ProtoMessage()    {}
 func (*GetTemplateRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{6}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{7}
 }
 func (m *GetTemplateRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_GetTemplateRequest.Unmarshal(m, b)
@@ -358,7 +404,7 @@ func (m *GetTemplateResponse) Reset()         { *m = GetTemplateResponse{} }
 func (m *GetTemplateResponse) String() string { return proto.CompactTextString(m) }
 func (*GetTemplateResponse) ProtoMessage()    {}
 func (*GetTemplateResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{7}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{8}
 }
 func (m *GetTemplateResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_GetTemplateResponse.Unmarshal(m, b)
@@ -396,7 +442,7 @@ func (m *GetPipelineVersionTemplateRequest) Reset()         { *m = GetPipelineVe
 func (m *GetPipelineVersionTemplateRequest) String() string { return proto.CompactTextString(m) }
 func (*GetPipelineVersionTemplateRequest) ProtoMessage()    {}
 func (*GetPipelineVersionTemplateRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{8}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{9}
 }
 func (m *GetPipelineVersionTemplateRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_GetPipelineVersionTemplateRequest.Unmarshal(m, b)
@@ -434,7 +480,7 @@ func (m *CreatePipelineVersionRequest) Reset()         { *m = CreatePipelineVers
 func (m *CreatePipelineVersionRequest) String() string { return proto.CompactTextString(m) }
 func (*CreatePipelineVersionRequest) ProtoMessage()    {}
 func (*CreatePipelineVersionRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{9}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{10}
 }
 func (m *CreatePipelineVersionRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_CreatePipelineVersionRequest.Unmarshal(m, b)
@@ -472,7 +518,7 @@ func (m *GetPipelineVersionRequest) Reset()         { *m = GetPipelineVersionReq
 func (m *GetPipelineVersionRequest) String() string { return proto.CompactTextString(m) }
 func (*GetPipelineVersionRequest) ProtoMessage()    {}
 func (*GetPipelineVersionRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{10}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{11}
 }
 func (m *GetPipelineVersionRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_GetPipelineVersionRequest.Unmarshal(m, b)
@@ -514,7 +560,7 @@ func (m *ListPipelineVersionsRequest) Reset()         { *m = ListPipelineVersion
 func (m *ListPipelineVersionsRequest) String() string { return proto.CompactTextString(m) }
 func (*ListPipelineVersionsRequest) ProtoMessage()    {}
 func (*ListPipelineVersionsRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{11}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{12}
 }
 func (m *ListPipelineVersionsRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ListPipelineVersionsRequest.Unmarshal(m, b)
@@ -582,7 +628,7 @@ func (m *ListPipelineVersionsResponse) Reset()         { *m = ListPipelineVersio
 func (m *ListPipelineVersionsResponse) String() string { return proto.CompactTextString(m) }
 func (*ListPipelineVersionsResponse) ProtoMessage()    {}
 func (*ListPipelineVersionsResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{12}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{13}
 }
 func (m *ListPipelineVersionsResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ListPipelineVersionsResponse.Unmarshal(m, b)
@@ -634,7 +680,7 @@ func (m *DeletePipelineVersionRequest) Reset()         { *m = DeletePipelineVers
 func (m *DeletePipelineVersionRequest) String() string { return proto.CompactTextString(m) }
 func (*DeletePipelineVersionRequest) ProtoMessage()    {}
 func (*DeletePipelineVersionRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{13}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{14}
 }
 func (m *DeletePipelineVersionRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_DeletePipelineVersionRequest.Unmarshal(m, b)
@@ -679,7 +725,7 @@ func (m *Pipeline) Reset()         { *m = Pipeline{} }
 func (m *Pipeline) String() string { return proto.CompactTextString(m) }
 func (*Pipeline) ProtoMessage()    {}
 func (*Pipeline) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{14}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{15}
 }
 func (m *Pipeline) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Pipeline.Unmarshal(m, b)
@@ -772,7 +818,7 @@ func (m *PipelineVersion) Reset()         { *m = PipelineVersion{} }
 func (m *PipelineVersion) String() string { return proto.CompactTextString(m) }
 func (*PipelineVersion) ProtoMessage()    {}
 func (*PipelineVersion) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pipeline_b225388ce0ee2aa9, []int{15}
+	return fileDescriptor_pipeline_1812fe44d51f79e6, []int{16}
 }
 func (m *PipelineVersion) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_PipelineVersion.Unmarshal(m, b)
@@ -844,6 +890,7 @@ func (m *PipelineVersion) GetResourceReferences() []*ResourceReference {
 func init() {
 	proto.RegisterType((*Url)(nil), "api.Url")
 	proto.RegisterType((*CreatePipelineRequest)(nil), "api.CreatePipelineRequest")
+	proto.RegisterType((*UpdatePipelineDefaultVersionRequest)(nil), "api.UpdatePipelineDefaultVersionRequest")
 	proto.RegisterType((*GetPipelineRequest)(nil), "api.GetPipelineRequest")
 	proto.RegisterType((*ListPipelinesRequest)(nil), "api.ListPipelinesRequest")
 	proto.RegisterType((*ListPipelinesResponse)(nil), "api.ListPipelinesResponse")
@@ -882,6 +929,7 @@ type PipelineServiceClient interface {
 	ListPipelineVersions(ctx context.Context, in *ListPipelineVersionsRequest, opts ...grpc.CallOption) (*ListPipelineVersionsResponse, error)
 	DeletePipelineVersion(ctx context.Context, in *DeletePipelineVersionRequest, opts ...grpc.CallOption) (*empty.Empty, error)
 	GetPipelineVersionTemplate(ctx context.Context, in *GetPipelineVersionTemplateRequest, opts ...grpc.CallOption) (*GetTemplateResponse, error)
+	UpdatePipelineDefaultVersion(ctx context.Context, in *UpdatePipelineDefaultVersionRequest, opts ...grpc.CallOption) (*empty.Empty, error)
 }
 
 type pipelineServiceClient struct {
@@ -982,6 +1030,15 @@ func (c *pipelineServiceClient) GetPipelineVersionTemplate(ctx context.Context,
 	return out, nil
 }
 
+func (c *pipelineServiceClient) UpdatePipelineDefaultVersion(ctx context.Context, in *UpdatePipelineDefaultVersionRequest, opts ...grpc.CallOption) (*empty.Empty, error) {
+	out := new(empty.Empty)
+	err := c.cc.Invoke(ctx, "/api.PipelineService/UpdatePipelineDefaultVersion", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // PipelineServiceServer is the server API for PipelineService service.
 type PipelineServiceServer interface {
 	CreatePipeline(context.Context, *CreatePipelineRequest) (*Pipeline, error)
@@ -994,6 +1051,7 @@ type PipelineServiceServer interface {
 	ListPipelineVersions(context.Context, *ListPipelineVersionsRequest) (*ListPipelineVersionsResponse, error)
 	DeletePipelineVersion(context.Context, *DeletePipelineVersionRequest) (*empty.Empty, error)
 	GetPipelineVersionTemplate(context.Context, *GetPipelineVersionTemplateRequest) (*GetTemplateResponse, error)
+	UpdatePipelineDefaultVersion(context.Context, *UpdatePipelineDefaultVersionRequest) (*empty.Empty, error)
 }
 
 func RegisterPipelineServiceServer(s *grpc.Server, srv PipelineServiceServer) {
@@ -1180,6 +1238,24 @@ func _PipelineService_GetPipelineVersionTemplate_Handler(srv interface{}, ctx co
 	return interceptor(ctx, in, info, handler)
 }
 
+func _PipelineService_UpdatePipelineDefaultVersion_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(UpdatePipelineDefaultVersionRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(PipelineServiceServer).UpdatePipelineDefaultVersion(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/api.PipelineService/UpdatePipelineDefaultVersion",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(PipelineServiceServer).UpdatePipelineDefaultVersion(ctx, req.(*UpdatePipelineDefaultVersionRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 var _PipelineService_serviceDesc = grpc.ServiceDesc{
 	ServiceName: "api.PipelineService",
 	HandlerType: (*PipelineServiceServer)(nil),
@@ -1224,89 +1300,97 @@ var _PipelineService_serviceDesc = grpc.ServiceDesc{
 			MethodName: "GetPipelineVersionTemplate",
 			Handler:    _PipelineService_GetPipelineVersionTemplate_Handler,
 		},
+		{
+			MethodName: "UpdatePipelineDefaultVersion",
+			Handler:    _PipelineService_UpdatePipelineDefaultVersion_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "backend/api/pipeline.proto",
 }
 
 func init() {
-	proto.RegisterFile("backend/api/pipeline.proto", fileDescriptor_pipeline_b225388ce0ee2aa9)
-}
-
-var fileDescriptor_pipeline_b225388ce0ee2aa9 = []byte{
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+	proto.RegisterFile("backend/api/pipeline.proto", fileDescriptor_pipeline_1812fe44d51f79e6)
+}
+
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diff --git a/backend/api/go_client/pipeline.pb.gw.go b/backend/api/go_client/pipeline.pb.gw.go
index 0ec180e87bd..adc40b78fbb 100755
--- a/backend/api/go_client/pipeline.pb.gw.go
+++ b/backend/api/go_client/pipeline.pb.gw.go
@@ -272,6 +272,44 @@ func request_PipelineService_GetPipelineVersionTemplate_0(ctx context.Context, m
 
 }
 
+func request_PipelineService_UpdatePipelineDefaultVersion_0(ctx context.Context, marshaler runtime.Marshaler, client PipelineServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq UpdatePipelineDefaultVersionRequest
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["pipeline_id"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "pipeline_id")
+	}
+
+	protoReq.PipelineId, err = runtime.String(val)
+
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "pipeline_id", err)
+	}
+
+	val, ok = pathParams["version_id"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "version_id")
+	}
+
+	protoReq.VersionId, err = runtime.String(val)
+
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "version_id", err)
+	}
+
+	msg, err := client.UpdatePipelineDefaultVersion(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
 // RegisterPipelineServiceHandlerFromEndpoint is same as RegisterPipelineServiceHandler but
 // automatically dials to "endpoint" and closes the connection when "ctx" gets done.
 func RegisterPipelineServiceHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
@@ -510,6 +548,26 @@ func RegisterPipelineServiceHandlerClient(ctx context.Context, mux *runtime.Serv
 
 	})
 
+	mux.Handle("POST", pattern_PipelineService_UpdatePipelineDefaultVersion_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_PipelineService_UpdatePipelineDefaultVersion_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_PipelineService_UpdatePipelineDefaultVersion_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
 	return nil
 }
 
@@ -533,6 +591,8 @@ var (
 	pattern_PipelineService_DeletePipelineVersion_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 1, 0, 4, 1, 5, 3}, []string{"apis", "v1beta1", "pipeline_versions", "version_id"}, ""))
 
 	pattern_PipelineService_GetPipelineVersionTemplate_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 1, 0, 4, 1, 5, 3, 2, 4}, []string{"apis", "v1beta1", "pipeline_versions", "version_id", "templates"}, ""))
+
+	pattern_PipelineService_UpdatePipelineDefaultVersion_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 1, 0, 4, 1, 5, 3, 2, 4, 1, 0, 4, 1, 5, 5}, []string{"apis", "v1beta1", "pipelines", "pipeline_id", "default_version", "version_id"}, ""))
 )
 
 var (
@@ -555,4 +615,6 @@ var (
 	forward_PipelineService_DeletePipelineVersion_0 = runtime.ForwardResponseMessage
 
 	forward_PipelineService_GetPipelineVersionTemplate_0 = runtime.ForwardResponseMessage
+
+	forward_PipelineService_UpdatePipelineDefaultVersion_0 = runtime.ForwardResponseMessage
 )
diff --git a/backend/api/go_http_client/pipeline_client/pipeline_service/BUILD.bazel b/backend/api/go_http_client/pipeline_client/pipeline_service/BUILD.bazel
index 58fce3e5241..cca2221c2c2 100644
--- a/backend/api/go_http_client/pipeline_client/pipeline_service/BUILD.bazel
+++ b/backend/api/go_http_client/pipeline_client/pipeline_service/BUILD.bazel
@@ -24,6 +24,8 @@ go_library(
         "list_pipelines_parameters.go",
         "list_pipelines_responses.go",
         "pipeline_service_client.go",
+        "update_pipeline_default_version_parameters.go",
+        "update_pipeline_default_version_responses.go",
     ],
     importpath = "github.com/kubeflow/pipelines/backend/api/go_http_client/pipeline_client/pipeline_service",
     visibility = ["//visibility:public"],
diff --git a/backend/api/go_http_client/pipeline_client/pipeline_service/pipeline_service_client.go b/backend/api/go_http_client/pipeline_client/pipeline_service/pipeline_service_client.go
index a516dcfa6f4..75240b2693c 100644
--- a/backend/api/go_http_client/pipeline_client/pipeline_service/pipeline_service_client.go
+++ b/backend/api/go_http_client/pipeline_client/pipeline_service/pipeline_service_client.go
@@ -328,6 +328,35 @@ func (a *Client) ListPipelines(params *ListPipelinesParams, authInfo runtime.Cli
 
 }
 
+/*
+UpdatePipelineDefaultVersion updates the default pipeline version of a specific pipeline
+*/
+func (a *Client) UpdatePipelineDefaultVersion(params *UpdatePipelineDefaultVersionParams, authInfo runtime.ClientAuthInfoWriter) (*UpdatePipelineDefaultVersionOK, error) {
+	// TODO: Validate the params before sending
+	if params == nil {
+		params = NewUpdatePipelineDefaultVersionParams()
+	}
+
+	result, err := a.transport.Submit(&runtime.ClientOperation{
+		ID:                 "UpdatePipelineDefaultVersion",
+		Method:             "POST",
+		PathPattern:        "/apis/v1beta1/pipelines/{pipeline_id}/default_version/{version_id}",
+		ProducesMediaTypes: []string{"application/json"},
+		ConsumesMediaTypes: []string{"application/json"},
+		Schemes:            []string{"http", "https"},
+		Params:             params,
+		Reader:             &UpdatePipelineDefaultVersionReader{formats: a.formats},
+		AuthInfo:           authInfo,
+		Context:            params.Context,
+		Client:             params.HTTPClient,
+	})
+	if err != nil {
+		return nil, err
+	}
+	return result.(*UpdatePipelineDefaultVersionOK), nil
+
+}
+
 // SetTransport changes the transport on the client
 func (a *Client) SetTransport(transport runtime.ClientTransport) {
 	a.transport = transport
diff --git a/backend/api/go_http_client/pipeline_client/pipeline_service/update_pipeline_default_version_parameters.go b/backend/api/go_http_client/pipeline_client/pipeline_service/update_pipeline_default_version_parameters.go
new file mode 100644
index 00000000000..7406c08a7a1
--- /dev/null
+++ b/backend/api/go_http_client/pipeline_client/pipeline_service/update_pipeline_default_version_parameters.go
@@ -0,0 +1,171 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by go-swagger; DO NOT EDIT.
+
+package pipeline_service
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"context"
+	"net/http"
+	"time"
+
+	"github.com/go-openapi/errors"
+	"github.com/go-openapi/runtime"
+	cr "github.com/go-openapi/runtime/client"
+
+	strfmt "github.com/go-openapi/strfmt"
+)
+
+// NewUpdatePipelineDefaultVersionParams creates a new UpdatePipelineDefaultVersionParams object
+// with the default values initialized.
+func NewUpdatePipelineDefaultVersionParams() *UpdatePipelineDefaultVersionParams {
+	var ()
+	return &UpdatePipelineDefaultVersionParams{
+
+		timeout: cr.DefaultTimeout,
+	}
+}
+
+// NewUpdatePipelineDefaultVersionParamsWithTimeout creates a new UpdatePipelineDefaultVersionParams object
+// with the default values initialized, and the ability to set a timeout on a request
+func NewUpdatePipelineDefaultVersionParamsWithTimeout(timeout time.Duration) *UpdatePipelineDefaultVersionParams {
+	var ()
+	return &UpdatePipelineDefaultVersionParams{
+
+		timeout: timeout,
+	}
+}
+
+// NewUpdatePipelineDefaultVersionParamsWithContext creates a new UpdatePipelineDefaultVersionParams object
+// with the default values initialized, and the ability to set a context for a request
+func NewUpdatePipelineDefaultVersionParamsWithContext(ctx context.Context) *UpdatePipelineDefaultVersionParams {
+	var ()
+	return &UpdatePipelineDefaultVersionParams{
+
+		Context: ctx,
+	}
+}
+
+// NewUpdatePipelineDefaultVersionParamsWithHTTPClient creates a new UpdatePipelineDefaultVersionParams object
+// with the default values initialized, and the ability to set a custom HTTPClient for a request
+func NewUpdatePipelineDefaultVersionParamsWithHTTPClient(client *http.Client) *UpdatePipelineDefaultVersionParams {
+	var ()
+	return &UpdatePipelineDefaultVersionParams{
+		HTTPClient: client,
+	}
+}
+
+/*UpdatePipelineDefaultVersionParams contains all the parameters to send to the API endpoint
+for the update pipeline default version operation typically these are written to a http.Request
+*/
+type UpdatePipelineDefaultVersionParams struct {
+
+	/*PipelineID
+	  The ID of the pipeline to be updated.
+
+	*/
+	PipelineID string
+	/*VersionID
+	  The ID of the default version.
+
+	*/
+	VersionID string
+
+	timeout    time.Duration
+	Context    context.Context
+	HTTPClient *http.Client
+}
+
+// WithTimeout adds the timeout to the update pipeline default version params
+func (o *UpdatePipelineDefaultVersionParams) WithTimeout(timeout time.Duration) *UpdatePipelineDefaultVersionParams {
+	o.SetTimeout(timeout)
+	return o
+}
+
+// SetTimeout adds the timeout to the update pipeline default version params
+func (o *UpdatePipelineDefaultVersionParams) SetTimeout(timeout time.Duration) {
+	o.timeout = timeout
+}
+
+// WithContext adds the context to the update pipeline default version params
+func (o *UpdatePipelineDefaultVersionParams) WithContext(ctx context.Context) *UpdatePipelineDefaultVersionParams {
+	o.SetContext(ctx)
+	return o
+}
+
+// SetContext adds the context to the update pipeline default version params
+func (o *UpdatePipelineDefaultVersionParams) SetContext(ctx context.Context) {
+	o.Context = ctx
+}
+
+// WithHTTPClient adds the HTTPClient to the update pipeline default version params
+func (o *UpdatePipelineDefaultVersionParams) WithHTTPClient(client *http.Client) *UpdatePipelineDefaultVersionParams {
+	o.SetHTTPClient(client)
+	return o
+}
+
+// SetHTTPClient adds the HTTPClient to the update pipeline default version params
+func (o *UpdatePipelineDefaultVersionParams) SetHTTPClient(client *http.Client) {
+	o.HTTPClient = client
+}
+
+// WithPipelineID adds the pipelineID to the update pipeline default version params
+func (o *UpdatePipelineDefaultVersionParams) WithPipelineID(pipelineID string) *UpdatePipelineDefaultVersionParams {
+	o.SetPipelineID(pipelineID)
+	return o
+}
+
+// SetPipelineID adds the pipelineId to the update pipeline default version params
+func (o *UpdatePipelineDefaultVersionParams) SetPipelineID(pipelineID string) {
+	o.PipelineID = pipelineID
+}
+
+// WithVersionID adds the versionID to the update pipeline default version params
+func (o *UpdatePipelineDefaultVersionParams) WithVersionID(versionID string) *UpdatePipelineDefaultVersionParams {
+	o.SetVersionID(versionID)
+	return o
+}
+
+// SetVersionID adds the versionId to the update pipeline default version params
+func (o *UpdatePipelineDefaultVersionParams) SetVersionID(versionID string) {
+	o.VersionID = versionID
+}
+
+// WriteToRequest writes these params to a swagger request
+func (o *UpdatePipelineDefaultVersionParams) WriteToRequest(r runtime.ClientRequest, reg strfmt.Registry) error {
+
+	if err := r.SetTimeout(o.timeout); err != nil {
+		return err
+	}
+	var res []error
+
+	// path param pipeline_id
+	if err := r.SetPathParam("pipeline_id", o.PipelineID); err != nil {
+		return err
+	}
+
+	// path param version_id
+	if err := r.SetPathParam("version_id", o.VersionID); err != nil {
+		return err
+	}
+
+	if len(res) > 0 {
+		return errors.CompositeValidationError(res...)
+	}
+	return nil
+}
diff --git a/backend/api/go_http_client/pipeline_client/pipeline_service/update_pipeline_default_version_responses.go b/backend/api/go_http_client/pipeline_client/pipeline_service/update_pipeline_default_version_responses.go
new file mode 100644
index 00000000000..75bc922984e
--- /dev/null
+++ b/backend/api/go_http_client/pipeline_client/pipeline_service/update_pipeline_default_version_responses.go
@@ -0,0 +1,124 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by go-swagger; DO NOT EDIT.
+
+package pipeline_service
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/go-openapi/runtime"
+
+	strfmt "github.com/go-openapi/strfmt"
+
+	pipeline_model "github.com/kubeflow/pipelines/backend/api/go_http_client/pipeline_model"
+)
+
+// UpdatePipelineDefaultVersionReader is a Reader for the UpdatePipelineDefaultVersion structure.
+type UpdatePipelineDefaultVersionReader struct {
+	formats strfmt.Registry
+}
+
+// ReadResponse reads a server response into the received o.
+func (o *UpdatePipelineDefaultVersionReader) ReadResponse(response runtime.ClientResponse, consumer runtime.Consumer) (interface{}, error) {
+	switch response.Code() {
+
+	case 200:
+		result := NewUpdatePipelineDefaultVersionOK()
+		if err := result.readResponse(response, consumer, o.formats); err != nil {
+			return nil, err
+		}
+		return result, nil
+
+	default:
+		result := NewUpdatePipelineDefaultVersionDefault(response.Code())
+		if err := result.readResponse(response, consumer, o.formats); err != nil {
+			return nil, err
+		}
+		if response.Code()/100 == 2 {
+			return result, nil
+		}
+		return nil, result
+	}
+}
+
+// NewUpdatePipelineDefaultVersionOK creates a UpdatePipelineDefaultVersionOK with default headers values
+func NewUpdatePipelineDefaultVersionOK() *UpdatePipelineDefaultVersionOK {
+	return &UpdatePipelineDefaultVersionOK{}
+}
+
+/*UpdatePipelineDefaultVersionOK handles this case with default header values.
+
+A successful response.
+*/
+type UpdatePipelineDefaultVersionOK struct {
+	Payload interface{}
+}
+
+func (o *UpdatePipelineDefaultVersionOK) Error() string {
+	return fmt.Sprintf("[POST /apis/v1beta1/pipelines/{pipeline_id}/default_version/{version_id}][%d] updatePipelineDefaultVersionOK  %+v", 200, o.Payload)
+}
+
+func (o *UpdatePipelineDefaultVersionOK) readResponse(response runtime.ClientResponse, consumer runtime.Consumer, formats strfmt.Registry) error {
+
+	// response payload
+	if err := consumer.Consume(response.Body(), &o.Payload); err != nil && err != io.EOF {
+		return err
+	}
+
+	return nil
+}
+
+// NewUpdatePipelineDefaultVersionDefault creates a UpdatePipelineDefaultVersionDefault with default headers values
+func NewUpdatePipelineDefaultVersionDefault(code int) *UpdatePipelineDefaultVersionDefault {
+	return &UpdatePipelineDefaultVersionDefault{
+		_statusCode: code,
+	}
+}
+
+/*UpdatePipelineDefaultVersionDefault handles this case with default header values.
+
+UpdatePipelineDefaultVersionDefault update pipeline default version default
+*/
+type UpdatePipelineDefaultVersionDefault struct {
+	_statusCode int
+
+	Payload *pipeline_model.APIStatus
+}
+
+// Code gets the status code for the update pipeline default version default response
+func (o *UpdatePipelineDefaultVersionDefault) Code() int {
+	return o._statusCode
+}
+
+func (o *UpdatePipelineDefaultVersionDefault) Error() string {
+	return fmt.Sprintf("[POST /apis/v1beta1/pipelines/{pipeline_id}/default_version/{version_id}][%d] UpdatePipelineDefaultVersion default  %+v", o._statusCode, o.Payload)
+}
+
+func (o *UpdatePipelineDefaultVersionDefault) readResponse(response runtime.ClientResponse, consumer runtime.Consumer, formats strfmt.Registry) error {
+
+	o.Payload = new(pipeline_model.APIStatus)
+
+	// response payload
+	if err := consumer.Consume(response.Body(), o.Payload); err != nil && err != io.EOF {
+		return err
+	}
+
+	return nil
+}
diff --git a/backend/api/pipeline.proto b/backend/api/pipeline.proto
index 2988de1ea8e..9a3db557701 100644
--- a/backend/api/pipeline.proto
+++ b/backend/api/pipeline.proto
@@ -139,6 +139,14 @@ service PipelineService {
       get: "/apis/v1beta1/pipeline_versions/{version_id}/templates"
     };
   }
+
+  // Update the default pipeline version of a specific pipeline.
+  rpc UpdatePipelineDefaultVersion(UpdatePipelineDefaultVersionRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      post: "/apis/v1beta1/pipelines/{pipeline_id}/default_version/{version_id}"
+      
+    };
+  }
 }
 
 message Url {
@@ -153,6 +161,14 @@ message CreatePipelineRequest {
   Pipeline pipeline = 1;
 }
 
+message UpdatePipelineDefaultVersionRequest {
+  // The ID of the pipeline to be updated.
+  string pipeline_id = 1;
+
+  // The ID of the default version. 
+  string version_id = 2; 
+}
+
 message GetPipelineRequest {
   // The ID of the pipeline to be retrieved.
   string id = 1;
diff --git a/backend/api/swagger/kfp_api_single_file.swagger.json b/backend/api/swagger/kfp_api_single_file.swagger.json
index 4769a8edde8..358bd2e867d 100644
--- a/backend/api/swagger/kfp_api_single_file.swagger.json
+++ b/backend/api/swagger/kfp_api_single_file.swagger.json
@@ -1028,6 +1028,45 @@
         ]
       }
     },
+    "/apis/v1beta1/pipelines/{pipeline_id}/default_version/{version_id}": {
+      "post": {
+        "summary": "Update the default pipeline version of a specific pipeline.",
+        "operationId": "UpdatePipelineDefaultVersion",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "properties": {}
+            }
+          },
+          "default": {
+            "description": "",
+            "schema": {
+              "$ref": "#/definitions/apiStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "pipeline_id",
+            "description": "The ID of the pipeline to be updated.",
+            "in": "path",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "name": "version_id",
+            "description": "The ID of the default version.",
+            "in": "path",
+            "required": true,
+            "type": "string"
+          }
+        ],
+        "tags": [
+          "PipelineService"
+        ]
+      }
+    },
     "/apis/v1beta1/experiments": {
       "get": {
         "summary": "Finds all experiments. Supports pagination, and sorting on certain fields.",
diff --git a/backend/api/swagger/pipeline.swagger.json b/backend/api/swagger/pipeline.swagger.json
index 5f383bef958..6f1a971b835 100644
--- a/backend/api/swagger/pipeline.swagger.json
+++ b/backend/api/swagger/pipeline.swagger.json
@@ -396,6 +396,45 @@
           "PipelineService"
         ]
       }
+    },
+    "/apis/v1beta1/pipelines/{pipeline_id}/default_version/{version_id}": {
+      "post": {
+        "summary": "Update the default pipeline version of a specific pipeline.",
+        "operationId": "UpdatePipelineDefaultVersion",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "properties": {}
+            }
+          },
+          "default": {
+            "description": "",
+            "schema": {
+              "$ref": "#/definitions/apiStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "pipeline_id",
+            "description": "The ID of the pipeline to be updated.",
+            "in": "path",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "name": "version_id",
+            "description": "The ID of the default version.",
+            "in": "path",
+            "required": true,
+            "type": "string"
+          }
+        ],
+        "tags": [
+          "PipelineService"
+        ]
+      }
     }
   },
   "definitions": {
diff --git a/backend/src/apiserver/resource/resource_manager.go b/backend/src/apiserver/resource/resource_manager.go
index 63ea07c3d79..ec3d0311c13 100644
--- a/backend/src/apiserver/resource/resource_manager.go
+++ b/backend/src/apiserver/resource/resource_manager.go
@@ -234,6 +234,10 @@ func (r *ResourceManager) DeletePipeline(pipelineId string) error {
 	return nil
 }
 
+func (r *ResourceManager) UpdatePipelineDefaultVersion(pipelineId string, versionId string) error {
+    return r.pipelineStore.UpdatePipelineDefaultVersion(pipelineId, versionId)
+}
+
 func (r *ResourceManager) CreatePipeline(name string, description string, pipelineFile []byte) (*model.Pipeline, error) {
 	// Extract the parameter from the pipeline
 	params, err := util.GetParameters(pipelineFile)
diff --git a/backend/src/apiserver/server/pipeline_server.go b/backend/src/apiserver/server/pipeline_server.go
index b682357c373..54e7e97139f 100644
--- a/backend/src/apiserver/server/pipeline_server.go
+++ b/backend/src/apiserver/server/pipeline_server.go
@@ -79,6 +79,11 @@ var (
 		Name: "pipeline_server_pipeline_count",
 		Help: "The current number of pipelines in Kubeflow Pipelines instance",
 	})
+
+	updatePipelineDefaultVersionRequests = promauto.NewCounter(prometheus.CounterOpts{
+		Name: "pipeline_server_update_default_version_requests",
+		Help: "The total number of UpdatePipelineDefaultVersion requests",
+	})
 )
 
 type PipelineServerOptions struct {
@@ -128,6 +133,19 @@ func (s *PipelineServer) CreatePipeline(ctx context.Context, request *api.Create
 	return ToApiPipeline(pipeline), nil
 }
 
+func (s *PipelineServer) UpdatePipelineDefaultVersion(ctx context.Context, request *api.UpdatePipelineDefaultVersionRequest) (*empty.Empty, error) {
+	if s.options.CollectMetrics {
+		updatePipelineDefaultVersionRequests.Inc()
+	}
+
+	err := s.resourceManager.UpdatePipelineDefaultVersion(request.PipelineId, request.VersionId)
+	if err != nil {
+		return nil, util.Wrap(err, "Update Pipeline Default Version failed.")
+	}
+
+	return &empty.Empty{}, nil
+}
+
 func (s *PipelineServer) GetPipeline(ctx context.Context, request *api.GetPipelineRequest) (*api.Pipeline, error) {
 	if s.options.CollectMetrics {
 		getPipelineRequests.Inc()
diff --git a/backend/src/common/client/api_server/pipeline_client.go b/backend/src/common/client/api_server/pipeline_client.go
index 90d2d4a4d7d..31073642cc3 100644
--- a/backend/src/common/client/api_server/pipeline_client.go
+++ b/backend/src/common/client/api_server/pipeline_client.go
@@ -23,12 +23,35 @@ type PipelineInterface interface {
 	List(params *params.ListPipelinesParams) ([]*model.APIPipeline, int, string, error)
 	ListAll(params *params.ListPipelinesParams, maxResultSize int) (
 		[]*model.APIPipeline, error)
+	UpdateDefaultVersion(params *params.UpdatePipelineDefaultVersionParams) error
 }
 
 type PipelineClient struct {
 	apiClient *apiclient.Pipeline
 }
 
+func (c *PipelineClient) UpdateDefaultVersion(parameters *params.UpdatePipelineDefaultVersionParams) error {
+	// Create context with timeout
+	ctx, cancel := context.WithTimeout(context.Background(), apiServerDefaultTimeout)
+	defer cancel()
+	// Make service call
+	parameters.Context = ctx
+	_, err := c.apiClient.PipelineService.UpdatePipelineDefaultVersion(parameters, PassThroughAuth)
+	if err != nil {
+		if defaultError, ok := err.(*params.GetPipelineDefault); ok {
+			err = CreateErrorFromAPIStatus(defaultError.Payload.Error, defaultError.Payload.Code)
+		} else {
+			err = CreateErrorCouldNotRecoverAPIStatus(err)
+		}
+
+		return util.NewUserError(err,
+			fmt.Sprintf("Failed to update pipeline. Params: '%v'", parameters),
+			fmt.Sprintf("Failed to update pipeline '%v'", parameters.PipelineID))
+	}
+
+	return nil
+}
+
 func NewPipelineClient(clientConfig clientcmd.ClientConfig, debug bool) (
 	*PipelineClient, error) {
 
diff --git a/backend/src/common/client/api_server/pipeline_client_fake.go b/backend/src/common/client/api_server/pipeline_client_fake.go
index 9e7edd4fcde..47c6339bfd5 100644
--- a/backend/src/common/client/api_server/pipeline_client_fake.go
+++ b/backend/src/common/client/api_server/pipeline_client_fake.go
@@ -8,6 +8,7 @@ import (
 	workflowapi "github.com/argoproj/argo/pkg/apis/workflow/v1alpha1"
 	"github.com/ghodss/yaml"
 	"github.com/go-openapi/strfmt"
+	params "github.com/kubeflow/pipelines/backend/api/go_http_client/pipeline_client/pipeline_service"
 	pipelineparams "github.com/kubeflow/pipelines/backend/api/go_http_client/pipeline_client/pipeline_service"
 	pipelinemodel "github.com/kubeflow/pipelines/backend/api/go_http_client/pipeline_model"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -128,3 +129,12 @@ func (c *PipelineClientFake) ListAll(params *pipelineparams.ListPipelinesParams,
 	maxResultSize int) ([]*pipelinemodel.APIPipeline, error) {
 	return listAllForPipeline(c, params, maxResultSize)
 }
+
+func (c *PipelineClientFake) UpdateDefaultVersion(params *params.UpdatePipelineDefaultVersionParams) error {
+	switch params.PipelineID {
+	case PipelineForClientErrorTest:
+		return fmt.Errorf(ClientErrorString)
+	default:
+		return nil
+	}
+}
diff --git a/backend/test/integration/pipeline_version_api_test.go b/backend/test/integration/pipeline_version_api_test.go
index c5eccef0536..54e02a8dcde 100644
--- a/backend/test/integration/pipeline_version_api_test.go
+++ b/backend/test/integration/pipeline_version_api_test.go
@@ -84,7 +84,23 @@ func (s *PipelineVersionApiTest) TestPipelineVersionAPI() {
 	assert.Nil(t, err)
 	assert.Equal(t, "arguments-parameters.yaml", argumentYAMLPipelineVersion.Name)
 
+	/* ---------- Update pipeline default version ---------- */
+	time.Sleep(1 * time.Second)
+	sortBy := "created_at"
+	versions, _, _, err := s.pipelineClient.ListPipelineVersions(&params.ListPipelineVersionsParams{ResourceKeyID: &pipelineId, SortBy: &sortBy})
+	assert.Nil(t, err)
+
+	err = s.pipelineClient.UpdateDefaultVersion(&params.UpdatePipelineDefaultVersionParams{PipelineID: pipelineId,
+		VersionID: versions[0].ID})
+	assert.Nil(t, err)
+
+	time.Sleep(1 * time.Second)
+	pipelineSelected, err := s.pipelineClient.Get(&params.GetPipelineParams{ID: pipelineId})
+	assert.Nil(t, err)
+	assert.Equal(t, pipelineSelected.DefaultVersion.ID, versions[0].ID)
+
 	/* ---------- Upload the same pipeline version again. Should fail due to name uniqueness ---------- */
+	time.Sleep(1 * time.Second)
 	_, err = s.pipelineUploadClient.UploadPipelineVersion("../resources/arguments-parameters.yaml", uploadParams.NewUploadPipelineVersionParams())
 	assert.NotNil(t, err)
 	assert.Contains(t, err.Error(), "Failed to upload pipeline version.")