diff --git a/.github/workflows/deployment.yml b/.github/workflows/deployment.yml
index a349f98..698be5c 100644
--- a/.github/workflows/deployment.yml
+++ b/.github/workflows/deployment.yml
@@ -13,23 +13,26 @@ on:
       - main
 jobs:
   test_linux:
-    name: Ubuntu
-    runs-on: ubuntu-latest
+    name: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-20.04]
+    runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
           node-version: 16
-      - uses: actions/cache@v1
+      - uses: microsoft/playwright-github-action@v1
+      - uses: actions/cache@v3
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
           restore-keys: |
             ${{ runner.os }}-node-
-      - name: Install Playwright dependencies
-        run: npx playwright install --with-deps
       - name: Install dependencies
-        run: npm ci
+        run: npm install
       - name: Run tests
         run: npm test
   test_win:
@@ -41,16 +44,14 @@ jobs:
         with:
           node-version: 16
       - uses: microsoft/playwright-github-action@v1
-      - uses: actions/cache@v1
+      - uses: actions/cache@v3
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
           restore-keys: |
             ${{ runner.os }}-node-
-      - name: Install Playwright dependencies
-        run: npx playwright install --with-deps
       - name: Install dependencies
-        run: npm ci
+        run: npm install
       - name: Run tests
         run: npm test
   tag:
@@ -69,7 +70,7 @@ jobs:
         with:
           node-version: '16.x'
           registry-url: 'https://registry.npmjs.org'
-      - uses: actions/cache@v1
+      - uses: actions/cache@v3
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
@@ -96,4 +97,4 @@ jobs:
           prerelease: false
       - run: npm publish --access public
         env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index a7a89da..60d2425 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@api-components/api-example-generator",
-  "version": "4.4.31",
+  "version": "4.4.32",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@api-components/api-example-generator",
-      "version": "4.4.31",
+      "version": "4.4.32",
       "license": "Apache-2.0",
       "dependencies": {
         "@api-components/amf-helper-mixin": "^4.5.24",
diff --git a/package.json b/package.json
index dc452f0..20756a6 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@api-components/api-example-generator",
   "description": "Examples generator from AMF model",
-  "version": "4.4.31",
+  "version": "4.4.32",
   "license": "Apache-2.0",
   "main": "index.js",
   "module": "index.js",
@@ -90,5 +90,8 @@
     "*.js": [
       "eslint --fix"
     ]
+  },
+  "overrides": {
+    "playwright": "1.25.2"
   }
 }
diff --git a/src/ExampleGenerator.js b/src/ExampleGenerator.js
index 4c1e55a..3aac66c 100644
--- a/src/ExampleGenerator.js
+++ b/src/ExampleGenerator.js
@@ -641,7 +641,9 @@ export class ExampleGenerator extends AmfHelperMixin(Object) {
       example,
       this.ns.aml.vocabularies.document.raw
     ));
-    if (!raw) {
+    const rawIsNull = raw === null;
+    const rawIsUndefined = raw === undefined;
+    if (rawIsNull || rawIsUndefined) {
       raw = /** @type {string} */ (this._getValue(
         example,
         this.ns.w3.shacl.raw
@@ -707,7 +709,7 @@ export class ExampleGenerator extends AmfHelperMixin(Object) {
       example,
       this.ns.aml.vocabularies.core.description
     ));
-    const hasRaw = !!raw;
+    const hasRaw = !rawIsNull && !rawIsUndefined;
     const result = {};
     result.hasTitle = !!title;
     result.hasUnion = false;
@@ -717,7 +719,7 @@ export class ExampleGenerator extends AmfHelperMixin(Object) {
     if (result.hasTitle) {
       result.title = title;
     }
-    if (opts.rawOnly && !raw) {
+    if (opts.rawOnly && (rawIsNull || rawIsUndefined)) {
       return undefined;
     }
     if (opts.rawOnly) {