diff --git a/circle.yml b/circle.yml
index 611d2bbf41..7b05df379e 100644
--- a/circle.yml
+++ b/circle.yml
@@ -460,8 +460,8 @@ jobs:
     steps:
       - build
       - build_silkworm:
-          branch: master
-          commit: 985013585c358bbfda399c668bdf9992815b806f
+          branch: evmone-evmc12
+          commit: evmone-evmc12
       - download_execution_tests:
           rev: v13.1
       - run: