diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0dc3d0e..5372764 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
           sudo curl -L https://github.com/hadolint/hadolint/releases/download/v$HADOLINT_VERSION/hadolint-$(uname -s)-$(uname -m) -o /usr/local/bin/hadolint
           sudo chmod 755 /usr/local/bin/hadolint
         env:
-          HADOLINT_VERSION: 2.0.0
+          HADOLINT_VERSION: 2.1.0
 
       - name: Run hadolint.
         run: |