diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index d54087852..edb5a2057 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -8,7 +8,7 @@ on:
   # enable to run workflow manually
   workflow_dispatch:
 
-  pull_request_target:
+  pull_request:
     types: [opened]
 
     # compare gas diff only when editing Solidity smart contract code