diff --git a/.github/workflows/push-check.yml b/.github/workflows/push-check.yml
index 186504e..e7aa7d3 100644
--- a/.github/workflows/push-check.yml
+++ b/.github/workflows/push-check.yml
@@ -6,7 +6,7 @@ jobs:
   build:
     strategy:
       matrix:
-        go: [ 1.20.x ]
+        go: [ 1.18.x ]
     runs-on: ubuntu-latest
 
     services: