diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ebbc07e..279db34 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -34,7 +34,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.18
+          go-version: 1.21
 
       - name: Lint
         run: go vet ./...
diff --git a/go.mod b/go.mod
index 11eb0eb..68581cc 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/oxisto/oauth2go
 
-go 1.18
+go 1.21
 
 require (
 	github.com/golang-jwt/jwt/v5 v5.0.0