diff --git a/apps/node-demo/package.json b/apps/node-demo/package.json
index 653cf277..62e52e84 100644
--- a/apps/node-demo/package.json
+++ b/apps/node-demo/package.json
@@ -14,7 +14,7 @@
   "dependencies": {
     "@astrojs/node": "^8.2.3",
     "@astrojs/react": "^3.0.10",
-    "@builder.io/qwik": "^1.5.1",
+    "@builder.io/qwik": "https://pkg.pr.new/@builder.io/qwik@5382c66",
     "@qwikdev/astro": "workspace:*",
     "@types/react": "^18.2.64",
     "@types/react-dom": "^18.2.21",
diff --git a/libs/qwikdev-astro/package.json b/libs/qwikdev-astro/package.json
index 2173d0d0..3a25bd0f 100644
--- a/libs/qwikdev-astro/package.json
+++ b/libs/qwikdev-astro/package.json
@@ -49,7 +49,7 @@
     "vite-tsconfig-paths": "^4.2.1"
   },
   "devDependencies": {
-    "@builder.io/qwik": "1.5.6",
+    "@builder.io/qwik": "https://pkg.pr.new/@builder.io/qwik@5382c66",
     "@types/fs-extra": "^11.0.4",
     "@types/node": "^20.10.0",
     "astro": "^4.5",
@@ -57,7 +57,7 @@
     "vite": "^5.2.6"
   },
   "peerDependencies": {
-    "@builder.io/qwik": "1.5.6",
+    "@builder.io/qwik": "https://pkg.pr.new/@builder.io/qwik@5382c66",
     "typescript": "^5.4.2"
   }
 }
diff --git a/libs/qwikdev-astro/server.ts b/libs/qwikdev-astro/server.ts
index 56328e87..79209c21 100644
--- a/libs/qwikdev-astro/server.ts
+++ b/libs/qwikdev-astro/server.ts
@@ -6,7 +6,8 @@ import {
   PrefetchServiceWorker,
   jsx
 } from "@builder.io/qwik";
-import type { QwikManifest, SymbolMapperFn } from "@builder.io/qwik/optimizer";
+import type { QwikManifest } from "@builder.io/qwik/optimizer";
+import { symbolMapper } from '@builder.io/qwik/optimizer';
 
 import { isDev } from "@builder.io/qwik/build";
 import { getQwikLoaderScript, renderToString } from "@builder.io/qwik/server";
@@ -94,22 +95,6 @@ export async function renderToStaticMarkup(
       children: [qwikScripts, ...(defaultSlot ? [defaultSlot] : []), ...slotValues]
     });
 
-    /**
-      For a given symbol (QRL such as `onKeydown$`) the server needs to know which bundle the symbol is in. 
-
-      Normally this is provided by Qwik's `q-manifest` . But `q-manifest` only exists after a full client build. 
-
-      This would be a problem in dev mode. So in dev mode the symbol is mapped to the expected URL using the symbolMapper function above. For Vite the given path is fixed for a given symbol.
-    */
-    const symbolMapper: SymbolMapperFn = (symbolName: string) => {
-      /* don't want to add a file path for sync$ */
-      if (symbolName === "<sync>") {
-        return;
-      }
-
-      return [symbolName, `/${process.env.SRC_DIR}/${symbolName.toLocaleLowerCase()}.js`];
-    };
-
     if (shouldAddQwikLoader) {
       qwikLoaderAdded.set(this.result, true);
     }
@@ -124,7 +109,7 @@ export async function renderToStaticMarkup(
       containerTagName: "div",
       containerAttributes: { style: "display: contents" },
       manifest: isDev ? ({} as QwikManifest) : manifest,
-      ...(manifest ? undefined : { symbolMapper }),
+      ...(manifest ? undefined : symbolMapper),
       qwikLoader: { include: "never" }
     });
 
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ce211884..b5e2b404 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -72,8 +72,8 @@ importers:
         specifier: ^3.0.10
         version: 3.3.0(@types/react-dom@18.2.25)(@types/react@18.2.79)(react-dom@18.2.0(react@18.2.0))(react@18.2.0)(vite@5.2.10(@types/node@20.12.7))
       '@builder.io/qwik':
-        specifier: ^1.5.1
-        version: 1.5.2(@types/node@20.12.7)(undici@6.13.0)
+        specifier: https://pkg.pr.new/@builder.io/qwik@5382c66
+        version: https://pkg.pr.new/@builder.io/qwik@5382c66(@types/node@20.12.7)(undici@6.13.0)
       '@qwikdev/astro':
         specifier: workspace:*
         version: link:../../libs/qwikdev-astro
@@ -158,8 +158,8 @@ importers:
         version: 4.3.2(typescript@5.4.5)(vite@5.2.10(@types/node@20.12.7))
     devDependencies:
       '@builder.io/qwik':
-        specifier: 1.5.6
-        version: 1.5.6(@types/node@20.12.7)(undici@6.13.0)
+        specifier: https://pkg.pr.new/@builder.io/qwik@5382c66
+        version: https://pkg.pr.new/@builder.io/qwik@5382c66(@types/node@20.12.7)(undici@6.13.0)
       '@types/fs-extra':
         specifier: ^11.0.4
         version: 11.0.4
@@ -433,8 +433,9 @@ packages:
     peerDependencies:
       undici: '*'
 
-  '@builder.io/qwik@1.5.6':
-    resolution: {integrity: sha512-dBdKrDpJ2qru2pLx/v/E6Jgq6AOMd3SgfpeSl5lStI5xQu/PLacPlkTsUVCy/Wr8XIfTqY/LHTbIywnw4O3Fhw==}
+  '@builder.io/qwik@https://pkg.pr.new/@builder.io/qwik@5382c66':
+    resolution: {tarball: https://pkg.pr.new/@builder.io/qwik@5382c66}
+    version: 1.6.0-dev20240704222606
     engines: {node: '>=16.8.0 <18.0.0 || >=18.11'}
     hasBin: true
     peerDependencies:
@@ -4169,7 +4170,7 @@ snapshots:
       - sugarss
       - terser
 
-  '@builder.io/qwik@1.5.6(@types/node@20.12.7)(undici@6.13.0)':
+  '@builder.io/qwik@https://pkg.pr.new/@builder.io/qwik@5382c66(@types/node@20.12.7)(undici@6.13.0)':
     dependencies:
       csstype: 3.1.3
       undici: 6.13.0