diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c04cf730..bc902d5e 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -92,4 +92,34 @@ jobs:
           haxelib run lime build html5
           haxelib run lime build neko
           haxelib run lime build hl
-          haxelib run lime build flash
\ No newline at end of file
+          haxelib run lime build flash
+
+      - name: Build samples/demo_npm/as3
+        working-directory: samples/demo_npm/as3
+        run: |
+          npm install
+          npm run build
+
+      - name: Build samples/demo_npm/es5
+        working-directory: samples/demo_npm/es5
+        run: |
+          npm install
+          npm run build
+
+      - name: Build samples/demo_npm/es6
+        working-directory: samples/demo_npm/es6
+        run: |
+          npm install
+          npm run build
+
+      - name: Build samples/demo_npm/haxe
+        working-directory: samples/demo_npm/haxe
+        run: |
+          npm install
+          npm run build
+
+      - name: Build samples/demo_npm/typescript
+        working-directory: samples/demo_npm/typescript
+        run: |
+          npm install
+          npm run build
\ No newline at end of file