diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ca57a20..8fbfef6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: ['1.16', '1.17', '1.18', '1.19', '1.20']
+        go-version: ['1.16', '1.17', '1.18', '1.19', '1.20', '1.21']
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v3