diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index 1b99984..3dc6377 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -29,7 +29,7 @@ jobs:
       - run: npm test
       - run: deno test --import-map=import_map.json test
         env:
-          DENO_NO_PACKAGE_JSON=1
+          DENO_NO_PACKAGE_JSON: 1
 
   run-tests-windows:
     runs-on: windows-latest
@@ -50,4 +50,4 @@ jobs:
       - run: npm test
       - run: deno test --import-map=import_map.json test
         env:
-          DENO_NO_PACKAGE_JSON=1
+          DENO_NO_PACKAGE_JSON: 1