diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0735135..0271919 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,7 +12,8 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        deno: [1.x, "1.8.2", canary, ~1.7, e7b7129b7a92b7500ded88f8f5baa25a7f59e56e]
+        deno:
+          [1.x, "1.8.2", canary, ~1.7, e7b7129b7a92b7500ded88f8f5baa25a7f59e56e]
 
     steps:
       - uses: actions/checkout@v2
@@ -24,3 +25,9 @@ jobs:
 
       - name: Test Deno
         run: deno run https://deno.land/std/examples/welcome.ts
+
+      - name: Format
+        run: npm run fmt:check
+
+      - name: Lint
+        run: npm run lint
diff --git a/package.json b/package.json
index ef43ca9..ae67bc9 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,8 @@
   "license": "MIT",
   "scripts": {
     "lint": "deno lint --unstable --ignore=node_modules",
-    "fmt": "deno fmt --ignore=node_modules"
+    "fmt": "deno fmt --ignore=node_modules",
+    "fmt:check": "deno fmt --ignore=node_modules --check"
   },
   "dependencies": {
     "@actions/core": "^1.2.6",