diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 9b636d2..24b8418 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -59,7 +59,7 @@ jobs:
       # Sign the Docker image
       - name: Install cosign
         if: github.event_name == 'push'
-        uses: sigstore/cosign-installer@3454372f43399081ed03b604cb2d021dabca52bb #v3.8.2
+        uses: sigstore/cosign-installer@398d4b0eeef1380460a10c8013a76f728fb906ac #v3.9.1
       - name: Sign the published Docker image
         if: github.event_name == 'push'
         env: