diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index 63c8694..92ff98a 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -157,7 +157,7 @@ jobs:
 
       # Install the cosign tool
       - name: Install cosign
-        uses: sigstore/cosign-installer@v4.1.2
+        uses: sigstore/cosign-installer@756fe2d284c7292c4e9b62c8a28f1e5629c59532 # v4.1.3
 
       # Set up Docker Buildx
       - name: Set up Docker Buildx