diff --git a/clients/cli/go.mod b/clients/cli/go.mod
index 50f8a7bb..d341af9e 100644
--- a/clients/cli/go.mod
+++ b/clients/cli/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/daviddengcn/go-colortext v1.0.0
 	github.com/jpillora/backoff v1.0.0
 	github.com/mitchellh/mapstructure v1.4.0
-	github.com/phrase/phrase-go/v2 v2.20.0 // x-release-please-version
+	github.com/phrase/phrase-go/v2 v2.21.0 // x-release-please-version
 	github.com/spf13/cobra v1.0.0
 	github.com/spf13/viper v1.7.1
 	gopkg.in/yaml.v2 v2.4.0
diff --git a/clients/go/CHANGELOG.md b/clients/go/CHANGELOG.md
index 2d8d20e0..1116cc46 100644
--- a/clients/go/CHANGELOG.md
+++ b/clients/go/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [2.21.0](https://github.com/phrase/openapi/compare/go-v2.20.0...go-v2.21.0) (2023-12-13)
+
+
+### Features
+
+* **API:** add Custom Metadata endpoints ([#474](https://github.com/phrase/openapi/issues/474)) ([d407d8b](https://github.com/phrase/openapi/commit/d407d8be5ccddec1afde14a12804a7a616f77d7a))
+
 ## [2.20.0](https://github.com/phrase/openapi/compare/go-v2.19.0...go-v2.20.0) (2023-12-13)
 
 
diff --git a/openapi-generator/go_lang.yaml b/openapi-generator/go_lang.yaml
index a3babd88..68aac684 100644
--- a/openapi-generator/go_lang.yaml
+++ b/openapi-generator/go_lang.yaml
@@ -2,7 +2,7 @@
 generatorName: go
 outputDir: clients/go
 packageName: phrase
-packageVersion: 2.20.0
+packageVersion: 2.21.0
 gitUserId: phrase
 gitRepoId: phrase-go
 httpUserAgent: Phrase Strings go
diff --git a/release-please/manifest-go.json b/release-please/manifest-go.json
index 26b25a25..49df20d2 100644
--- a/release-please/manifest-go.json
+++ b/release-please/manifest-go.json
@@ -1,3 +1,3 @@
 {
-  ".": "2.20.0"
+  ".": "2.21.0"
 }
\ No newline at end of file