diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eb33e74..1b9cc36 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,11 +33,13 @@ jobs:
         uses: actions/cache@v4
         with:
           path: ~/.elm
-          key: elm-${{ hashFiles('elm.json', 'review/elm.json') }}
+          key: elm-${{ hashFiles('elm.json', 'review/elm.json', 'example/counter/elm.json') }}
 
       # Install npm packages, unless we restored them from cache.
       # Since `npm ci` removes the node_modules folder before running it’s
       # important to skip this step if cache was restored.
+      - name: Setup lamdera dependencies
+        run: (cd example/counter && npx lamdera make src/*.elm)
       - name: npm ci
         if: steps.cache-node_modules.outputs.cache-hit != 'true'
         run: npm ci
diff --git a/package-lock.json b/package-lock.json
index 2e54f51..953f389 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6,10 +6,81 @@
     "": {
       "name": "program-test",
       "devDependencies": {
+        "elm-format": "^0.8.8",
         "elm-test": "^0.19.1-revision16",
         "lamdera": "^0.19.1-1.3.2"
       }
     },
+    "node_modules/@avh4/elm-format-darwin-arm64": {
+      "version": "0.8.8-1",
+      "resolved": "https://registry.npmjs.org/@avh4/elm-format-darwin-arm64/-/elm-format-darwin-arm64-0.8.8-1.tgz",
+      "integrity": "sha512-VDu3CRajhB/Sax+CEU4PhIzErBZv8vVxbk9Sk8seUHa1ngfICa3Ejoq3PhnoOFKYF1v1sSxNOC2RnUzvd/9bUw==",
+      "cpu": [
+        "arm64"
+      ],
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "optional": true,
+      "os": [
+        "darwin"
+      ]
+    },
+    "node_modules/@avh4/elm-format-darwin-x64": {
+      "version": "0.8.8-1",
+      "resolved": "https://registry.npmjs.org/@avh4/elm-format-darwin-x64/-/elm-format-darwin-x64-0.8.8-1.tgz",
+      "integrity": "sha512-9NAzi3HUBSHEIx3Nje+a6wFcv6RDKv2PO0OUNcV/XlS4Sou3r89xsYAVAXS8mi4+CKTdscyfSSkgGd8qiCCxAw==",
+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "optional": true,
+      "os": [
+        "darwin"
+      ]
+    },
+    "node_modules/@avh4/elm-format-linux-arm64": {
+      "version": "0.8.8-1",
+      "resolved": "https://registry.npmjs.org/@avh4/elm-format-linux-arm64/-/elm-format-linux-arm64-0.8.8-1.tgz",
+      "integrity": "sha512-VNuXYphgxtnk7Gw+VBgWBeA9k8wKSo9r/O2F7udgurokYLO8S+RGhLHgD9mb6Yecv/veWz4v9n/O0IggH/BOCQ==",
+      "cpu": [
+        "arm64"
+      ],
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@avh4/elm-format-linux-x64": {
+      "version": "0.8.8-1",
+      "resolved": "https://registry.npmjs.org/@avh4/elm-format-linux-x64/-/elm-format-linux-x64-0.8.8-1.tgz",
+      "integrity": "sha512-IvtmUTDw/V5mBeglLgtQMzWZPc0QvmqUmoJ+vipxYii3DJ/1KV2drtpvlLuFdBlFrehUivtrh4HhOTsdGXxyXQ==",
+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@avh4/elm-format-win32-x64": {
+      "version": "0.8.8-1",
+      "resolved": "https://registry.npmjs.org/@avh4/elm-format-win32-x64/-/elm-format-win32-x64-0.8.8-1.tgz",
+      "integrity": "sha512-qGYZM2oJFSVQ80Tayk1v15ba7PWCU3B89EkA3Fy4YQasvtA+UrYYR5Bv7MRF4kn6Zp7oSDk4FhknURFsZWZ7kg==",
+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "optional": true,
+      "os": [
+        "win32"
+      ]
+    },
     "node_modules/@lamdera/compiler-darwin-arm64": {
       "version": "0.19.1-1.3.2",
       "resolved": "https://registry.npmjs.org/@lamdera/compiler-darwin-arm64/-/compiler-darwin-arm64-0.19.1-1.3.2.tgz",
@@ -223,6 +294,24 @@
         "node": ">= 8"
       }
     },
+    "node_modules/elm-format": {
+      "version": "0.8.8",
+      "resolved": "https://registry.npmjs.org/elm-format/-/elm-format-0.8.8.tgz",
+      "integrity": "sha512-OJYUtVnepuy8UZdnL5OCjSxUY5+dIGP2NdWTB6icxVVOOH0b8MpJIijTPsGW+ztnv9yzSoTK0dhCuVDh+AGhNQ==",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "BSD-3-Clause",
+      "bin": {
+        "elm-format": "bin/elm-format"
+      },
+      "optionalDependencies": {
+        "@avh4/elm-format-darwin-arm64": "0.8.8-1",
+        "@avh4/elm-format-darwin-x64": "0.8.8-1",
+        "@avh4/elm-format-linux-arm64": "0.8.8-1",
+        "@avh4/elm-format-linux-x64": "0.8.8-1",
+        "@avh4/elm-format-win32-x64": "0.8.8-1"
+      }
+    },
     "node_modules/elm-solve-deps-wasm": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/elm-solve-deps-wasm/-/elm-solve-deps-wasm-2.0.0.tgz",
diff --git a/package.json b/package.json
index 1fa2f8a..53e8552 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,7 @@
     "test": "cd example/counter && elm-test --compiler `which lamdera`"
   },
   "devDependencies": {
+    "elm-format": "^0.8.8",
     "elm-test": "^0.19.1-revision16",
     "lamdera": "^0.19.1-1.3.2"
   }