diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 5a09637..c4b8e05 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -15,6 +15,6 @@ jobs:
           node-version: 18.12.1
           cache: npm
       - name: Install
-        run: npm ci
+        run: npm ci --prefer-offline
       - name: Run tests
         run: npm run test:unit
diff --git a/.github/workflows/type-check.yml b/.github/workflows/type-check.yml
new file mode 100644
index 0000000..08c8310
--- /dev/null
+++ b/.github/workflows/type-check.yml
@@ -0,0 +1,20 @@
+name: 'Run tests'
+
+on: [push, workflow_dispatch]
+
+jobs:
+  type-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+#         TODO: add version to a .nvmrc or at least a variable
+          node-version: 18.12.1
+          cache: npm
+      - name: Install
+        run: npm ci --prefer-offline
+      - name: Type check
+        run: npm run type-check