diff --git a/.github/workflows/certora.yml b/.github/workflows/certora.yml
index c907703e..94d56033 100644
--- a/.github/workflows/certora.yml
+++ b/.github/workflows/certora.yml
@@ -34,7 +34,7 @@ jobs:
         with: { java-version: '11', java-package: jre }
 
       - name: Install certora cli
-        run: pip install certora-cli
+        run: pip install certora-cli==4.13.1
 
       - name: Install solc
         run: |