diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index ee4b91777..0c8eed866 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -7,7 +7,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java: [11, 17. 21]
+        java: [11, 17, 21]
     runs-on: ubuntu-latest
     steps:
     - name: Checkout