diff --git a/.github/workflows/nightly-oras.yml b/.github/workflows/nightly-oras.yml
index 88c98c4..1fe7f30 100644
--- a/.github/workflows/nightly-oras.yml
+++ b/.github/workflows/nightly-oras.yml
@@ -117,7 +117,7 @@ jobs:
         uses: oras-project/setup-oras@22ce207df3b08e061f537244349aac6ae1d214f6 # v1.2.4
 
       - name: Install cosign
-        uses: sigstore/cosign-installer@ba7bc0a3fef59531c69a25acd34668d6d3fe6f22 # v4.1.0
+        uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2
 
       - name: ORAS login to GHCR
         shell: bash
diff --git a/.github/workflows/release-oras.yml b/.github/workflows/release-oras.yml
index 57efa7f..6c93758 100644
--- a/.github/workflows/release-oras.yml
+++ b/.github/workflows/release-oras.yml
@@ -96,7 +96,7 @@ jobs:
         uses: oras-project/setup-oras@22ce207df3b08e061f537244349aac6ae1d214f6 # v1.2.4
 
       - name: Install cosign
-        uses: sigstore/cosign-installer@ba7bc0a3fef59531c69a25acd34668d6d3fe6f22 # v4.1.0
+        uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2
 
       - name: ORAS login to GHCR
         shell: bash