diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index eb44ad4..8117c47 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -21,3 +21,11 @@ jobs:
         with:
           bun-version: latest
       - run: bun test
+  fmt:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: latest
+      - run: bun fmt:ci
\ No newline at end of file
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index a28d795..8311b04 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -15,4 +15,4 @@ Reference existing `*.test.ts` files for implementation.
 ```sh
 # Run tests for a specific module!
 $ bun test -t '<module>'
-```
\ No newline at end of file
+```
diff --git a/package.json b/package.json
index 2666697..2191e59 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,8 @@
   "name": "modules",
   "scripts": {
     "test": "bun test",
-    "fmt": "bun x prettier -w **/*.ts **/*.md"
+    "fmt": "bun x prettier -w **/*.ts **/*.md *.md",
+    "fmt:ci": "bun x prettier --check **/*.ts **/*.md *.md"
   },
   "devDependencies": {
     "bun-types": "^1.0.3"