diff --git a/generators/protoc-gen-go-googlecetypes/go.mod b/generators/protoc-gen-go-googlecetypes/go.mod
index 7c0072b..1fe8d95 100644
--- a/generators/protoc-gen-go-googlecetypes/go.mod
+++ b/generators/protoc-gen-go-googlecetypes/go.mod
@@ -2,4 +2,4 @@ module github.com/googleapis/google-cloudevents-go/generators/protoc-gen-go-goog
 
 go 1.18
 
-require google.golang.org/protobuf v1.28.1
+require google.golang.org/protobuf v1.30.0
diff --git a/generators/protoc-gen-go-googlecetypes/go.sum b/generators/protoc-gen-go-googlecetypes/go.sum
index 00f5993..618af16 100644
--- a/generators/protoc-gen-go-googlecetypes/go.sum
+++ b/generators/protoc-gen-go-googlecetypes/go.sum
@@ -6,3 +6,5 @@ golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8T
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
 google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.30.0 h1:kPPoIgf3TsEvrm0PFe15JQ+570QVxYzEvvHqChK+cng=
+google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=