diff --git a/action.yml b/action.yml
index 7bb387c9..3f3d01cf 100644
--- a/action.yml
+++ b/action.yml
@@ -129,7 +129,7 @@ runs:
 
     - name: Sign the receipt
       if: ${{ always() && inputs.receipt == 'true' }}
-      uses: actions/attest@v2
+      uses: actions/attest@v4.2.0
       with:
         subject-name: gate-integrity
         predicate-type: 'https://modonome.com/attestation/gate-integrity/v1'
@@ -153,7 +153,7 @@ runs:
 
     - name: Sign the AgentProof attestation
       if: ${{ always() && inputs.agentproof == 'true' }}
-      uses: actions/attest@v2
+      uses: actions/attest@v4.2.0
       with:
         subject-name: agentproof-conformance
         predicate-type: 'https://modonome.com/attestation/agentproof-conformance/v1'