diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index efa8b75..b270118 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,6 +28,6 @@ jobs:
         express-version: ${{ matrix.express-version }}
     - run: npm install -g codecov
     - run: npm install -g json
-    - run: json -I -f package.json -e "this.devDependencies.express=\"${{ matrix.express-version }}"" 
+    - run: json -I -f package.json -e "this.devDependencies.express=\"${{ matrix.express-version }}\"" 
     - run: npm install
     - run: npm test