diff --git a/bucket.go b/bucket.go
index 77f5e01c..c47c1aae 100644
--- a/bucket.go
+++ b/bucket.go
@@ -1,7 +1,7 @@
 package gocb
 
 import (
-	"gopkg.in/couchbase/gocbcore.v2"
+	"gopkg.in/couchbase/gocbcore.v4"
 	"math/rand"
 	"time"
 )
diff --git a/bucket_crud.go b/bucket_crud.go
index d5674f19..7430e16f 100644
--- a/bucket_crud.go
+++ b/bucket_crud.go
@@ -1,7 +1,7 @@
 package gocb
 
 import (
-	"gopkg.in/couchbase/gocbcore.v2"
+	"gopkg.in/couchbase/gocbcore.v4"
 )
 
 // Retrieves a document from the bucket
diff --git a/bucket_dura.go b/bucket_dura.go
index 5b277b0a..2fad6f00 100644
--- a/bucket_dura.go
+++ b/bucket_dura.go
@@ -1,7 +1,7 @@
 package gocb
 
 import (
-	"gopkg.in/couchbase/gocbcore.v2"
+	"gopkg.in/couchbase/gocbcore.v4"
 )
 
 func (b *Bucket) observeOnceCas(key []byte, cas Cas, forDelete bool, replicaIdx int, commCh chan uint) (pendingOp, error) {
diff --git a/bucket_internal.go b/bucket_internal.go
index b15d3b4c..7234d552 100644
--- a/bucket_internal.go
+++ b/bucket_internal.go
@@ -1,7 +1,7 @@
 package gocb
 
 import (
-	"gopkg.in/couchbase/gocbcore.v2"
+	"gopkg.in/couchbase/gocbcore.v4"
 )
 
 // *INTERNAL*
diff --git a/bucket_multi.go b/bucket_multi.go
index 56dc34c2..672f8753 100644
--- a/bucket_multi.go
+++ b/bucket_multi.go
@@ -1,7 +1,7 @@
 package gocb
 
 import (
-	"gopkg.in/couchbase/gocbcore.v2"
+	"gopkg.in/couchbase/gocbcore.v4"
 )
 
 type bulkOp struct {
diff --git a/bucket_subdoc.go b/bucket_subdoc.go
index 6ad07dcd..31cbbb7b 100644
--- a/bucket_subdoc.go
+++ b/bucket_subdoc.go
@@ -2,7 +2,7 @@ package gocb
 
 import (
 	"encoding/json"
-	"gopkg.in/couchbase/gocbcore.v2"
+	"gopkg.in/couchbase/gocbcore.v4"
 	"log"
 )
 
diff --git a/cluster.go b/cluster.go
index e9ecc1d7..ed705a76 100644
--- a/cluster.go
+++ b/cluster.go
@@ -4,7 +4,7 @@ import (
 	"crypto/tls"
 	"crypto/x509"
 	"errors"
-	"gopkg.in/couchbase/gocbcore.v2"
+	"gopkg.in/couchbase/gocbcore.v4"
 	"io/ioutil"
 	"net/http"
 	"sync"
diff --git a/error.go b/error.go
index 5ecc831d..4396ae47 100644
--- a/error.go
+++ b/error.go
@@ -2,7 +2,7 @@ package gocb
 
 import (
 	"errors"
-	"gopkg.in/couchbase/gocbcore.v2"
+	"gopkg.in/couchbase/gocbcore.v4"
 )
 
 type clientError struct {
diff --git a/token.go b/token.go
index 39dfb9e4..8c51a6f8 100644
--- a/token.go
+++ b/token.go
@@ -3,7 +3,7 @@ package gocb
 import (
 	"encoding/json"
 	"fmt"
-	"gopkg.in/couchbase/gocbcore.v2"
+	"gopkg.in/couchbase/gocbcore.v4"
 )
 
 // MutationToken holds the mutation state information from an operation.
diff --git a/token_test.go b/token_test.go
index 30e8b604..6ebed3a6 100644
--- a/token_test.go
+++ b/token_test.go
@@ -2,7 +2,7 @@ package gocb
 
 import (
 	"encoding/json"
-	"gopkg.in/couchbase/gocbcore.v2"
+	"gopkg.in/couchbase/gocbcore.v4"
 	"strings"
 	"testing"
 )