diff --git a/.github/workflows/ko_build.yml b/.github/workflows/ko_build.yml
index 2fc7319e..c1d986a9 100644
--- a/.github/workflows/ko_build.yml
+++ b/.github/workflows/ko_build.yml
@@ -32,7 +32,7 @@ jobs:
         uses: ko-build/setup-ko@d006021bd0c28d1ce33a07e7943d48b079944c8d # v0.9.0
 
       - name: Install cosign
-        uses: sigstore/cosign-installer@faadad0cce49287aee09b3a48701e75088a2c6ad # v4.0.0
+        uses: sigstore/cosign-installer@ba7bc0a3fef59531c69a25acd34668d6d3fe6f22 # v4.1.0
 
       - name: Login to GHCR
         uses: docker/login-action@b45d80f862d83dbcd57f89517bcf500b2ab88fb2 # v4.0.0