diff --git a/.github/workflows/spdk.yml b/.github/workflows/spdk.yml
index ec80da8..d1a71a1 100644
--- a/.github/workflows/spdk.yml
+++ b/.github/workflows/spdk.yml
@@ -405,7 +405,7 @@ jobs:
 
       # ── Cosign: install ───────────────────────────────────────
       - name: Install Cosign
-        uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2
+        uses: sigstore/cosign-installer@756fe2d284c7292c4e9b62c8a28f1e5629c59532 # v4.1.3
 
       # ── Cosign: sign image (keyless via Fulcio OIDC) ──────────
       - name: Sign image