diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a214779..858b8fa 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -11,6 +11,7 @@ jobs:
   typecheck:
     runs-on: ubuntu-latest
     name: Typecheck
+    environment: typecheck
     steps:
       - uses: actions/checkout@v3
       - name: Set up Ruby