diff --git a/scripts/pagespeed-sitemap.ts b/scripts/pagespeed-sitemap.ts
index 8465061c..094db066 100644
--- a/scripts/pagespeed-sitemap.ts
+++ b/scripts/pagespeed-sitemap.ts
@@ -95,12 +95,41 @@ async function main() {
           console.log(`✅ Detected Puppeteer Chrome at: ${chromePath}`);
         }
       } catch (e: any) {
-        console.warn(`⚠️ Could not detect Puppeteer Chrome path automatically: ${e.message}`);
+        console.warn(`⚠️ Could not detect Puppeteer Chrome path via command: ${e.message}`);
+      }
+
+      // Fallback to known paths if still not found
+      if (!chromePath) {
+        const fallbacks = [
+          '/root/.cache/puppeteer/chrome/linux-145.0.7632.77/chrome-linux64/chrome',
+          '/home/runner/.cache/puppeteer/chrome/linux-145.0.7632.77/chrome-linux64/chrome',
+          path.join(
+            process.cwd(),
+            'node_modules',
+            '.puppeteer',
+            'chrome',
+            'linux-145.0.7632.77',
+            'chrome-linux64',
+            'chrome',
+          ),
+        ];
+
+        for (const fallback of fallbacks) {
+          if (fs.existsSync(fallback)) {
+            chromePath = fallback;
+            console.log(`✅ Found Puppeteer Chrome at fallback: ${chromePath}`);
+            break;
+          }
+        }
       }
     } else {
       console.log(`ℹ️ Using existing Chrome path: ${chromePath}`);
     }
 
+    if (!chromePath) {
+      console.warn('❌ CHROME_PATH is still undefined. Lighthouse might fail.');
+    }
+
     const chromePathArg = chromePath ? `--collect.chromePath="${chromePath}"` : '';
 
     // Clean up old reports