diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ecce0a8..16facd7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -60,7 +60,7 @@ jobs:
 
       - name: Install cosign
         if: github.event_name != 'pull_request'
-        uses: sigstore/cosign-installer@v3
+        uses: sigstore/cosign-installer@v4.1.2
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3