diff --git a/.github/workflows/errcheck.yml b/.github/workflows/errcheck.yml
index 7926a78..6806e11 100644
--- a/.github/workflows/errcheck.yml
+++ b/.github/workflows/errcheck.yml
@@ -10,7 +10,7 @@ jobs:
   build:
     strategy:
       matrix:
-        go: ["1.18.x", "1.19.x", "1.20.x"]
+        go: ["1.18.x", "1.19.x", "1.20.x", "1.21.x"]
     name: go ${{ matrix.go }}
     runs-on: ubuntu-latest