diff --git a/.github/workflows/style.yml b/.github/workflows/style.yml
index 39b559f4ca..462ece303e 100644
--- a/.github/workflows/style.yml
+++ b/.github/workflows/style.yml
@@ -115,6 +115,11 @@ jobs:
         working-directory: ./web
         run: pnpm run knip
 
+      - name: Web build check
+        if: steps.changed-files.outputs.any_changed == 'true'
+        working-directory: ./web
+        run: pnpm run build
+
   superlinter:
     name: SuperLinter
     runs-on: ubuntu-latest
diff --git a/web/knip.config.ts b/web/knip.config.ts
index 414b00fb7f..6ffda0316a 100644
--- a/web/knip.config.ts
+++ b/web/knip.config.ts
@@ -15,6 +15,10 @@ const config: KnipConfig = {
   ignoreBinaries: [
     'only-allow',
   ],
+  ignoreDependencies: [
+    // required by next-pwa
+    'babel-loader',
+  ],
   rules: {
     files: 'warn',
     dependencies: 'warn',
diff --git a/web/package.json b/web/package.json
index 0c6821ce86..7ee2325dbc 100644
--- a/web/package.json
+++ b/web/package.json
@@ -190,6 +190,7 @@
     "@vitejs/plugin-react": "^5.1.2",
     "@vitest/coverage-v8": "4.0.16",
     "autoprefixer": "^10.4.21",
+    "babel-loader": "^10.0.0",
     "bing-translate-api": "^4.1.0",
     "code-inspector-plugin": "1.2.9",
     "cross-env": "^10.1.0",
diff --git a/web/pnpm-lock.yaml b/web/pnpm-lock.yaml
index 373e2e4020..cdd194da37 100644
--- a/web/pnpm-lock.yaml
+++ b/web/pnpm-lock.yaml
@@ -481,6 +481,9 @@ importers:
       autoprefixer:
         specifier: ^10.4.21
         version: 10.4.22(postcss@8.5.6)
+      babel-loader:
+        specifier: ^10.0.0
+        version: 10.0.0(@babel/core@7.28.5)(webpack@5.103.0(esbuild@0.25.0)(uglify-js@3.19.3))
       bing-translate-api:
         specifier: ^4.1.0
         version: 4.2.0
@@ -4265,6 +4268,13 @@ packages:
     peerDependencies:
       postcss: ^8.1.0
 
+  babel-loader@10.0.0:
+    resolution: {integrity: sha512-z8jt+EdS61AMw22nSfoNJAZ0vrtmhPRVi6ghL3rCeRZI8cdNYFiV5xeV3HbE7rlZZNmGH8BVccwWt8/ED0QOHA==}
+    engines: {node: ^18.20.0 || ^20.10.0 || >=22.0.0}
+    peerDependencies:
+      '@babel/core': ^7.12.0
+      webpack: '>=5.61.0'
+
   babel-loader@8.4.1:
     resolution: {integrity: sha512-nXzRChX+Z1GoE6yWavBQg6jDslyFF3SDjl2paADuoQtQW10JqShJt62R6eJQ5m/pjJFDT8xgKIWSP85OY8eXeA==}
     engines: {node: '>= 8.9'}
@@ -13080,6 +13090,12 @@ snapshots:
       postcss: 8.5.6
       postcss-value-parser: 4.2.0
 
+  babel-loader@10.0.0(@babel/core@7.28.5)(webpack@5.103.0(esbuild@0.25.0)(uglify-js@3.19.3)):
+    dependencies:
+      '@babel/core': 7.28.5
+      find-up: 5.0.0
+      webpack: 5.103.0(esbuild@0.25.0)(uglify-js@3.19.3)
+
   babel-loader@8.4.1(@babel/core@7.28.5)(webpack@5.103.0(esbuild@0.25.0)(uglify-js@3.19.3)):
     dependencies:
       '@babel/core': 7.28.5