diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ad0d565..4c7312d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -166,7 +166,7 @@ jobs:
       # using Cosign and save the private key as a repository secret in Github for this workflow
       # to consume. For more details, review the image signing section of the README.
       - name: Install Cosign
-        uses: sigstore/cosign-installer@3454372f43399081ed03b604cb2d021dabca52bb # v3.8.2
+        uses: sigstore/cosign-installer@faadad0cce49287aee09b3a48701e75088a2c6ad # v4.0.0
         if: github.event_name != 'pull_request' && github.ref == format('refs/heads/{0}', github.event.repository.default_branch)
 
       - name: Sign container image