diff --git a/.github/workflows/build-bootc-image.yaml b/.github/workflows/build-bootc-image.yaml
index b352cd1..1d333cb 100644
--- a/.github/workflows/build-bootc-image.yaml
+++ b/.github/workflows/build-bootc-image.yaml
@@ -152,7 +152,7 @@ jobs:
           password: ${{ env.REGISTRY_PASSWORD }}
 
       - name: Install Cosign
-        uses: sigstore/cosign-installer@d58896d6a1865668819e1d91763c7751a165e159 # v3.9.2
+        uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2
         if: github.event_name != 'pull_request' && github.ref == format('refs/heads/{0}', github.event.repository.default_branch)
 
       - name: Sign container image