diff --git a/.github/workflows/extensibility.yaml b/.github/workflows/extensibility.yaml
index c05a40e..0a8ffcd 100644
--- a/.github/workflows/extensibility.yaml
+++ b/.github/workflows/extensibility.yaml
@@ -19,7 +19,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v3.0.0
         with:
-          go-version: '1.20'
+          go-version: '1.22'
       - name: build
         working-directory: extensibility
         run: go build ./...
diff --git a/extensibility/go.mod b/extensibility/go.mod
index f5fd858..e203ca7 100644
--- a/extensibility/go.mod
+++ b/extensibility/go.mod
@@ -1,6 +1,6 @@
 module github.com/temporalio/service-samples
 
-go 1.21
+go 1.22
 
 toolchain go1.22.1