diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 567e4b35..a8cb11b3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -24,7 +24,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-latest, macos-14-large, ubuntu-latest]
+        os: [windows-latest, macos-13, ubuntu-latest]
 
     # create steps
     steps:
diff --git a/packages/backend/src/vendor/SocketIO.ts b/packages/backend/src/vendor/SocketIO.ts
index dddc782b..780ceae5 100644
--- a/packages/backend/src/vendor/SocketIO.ts
+++ b/packages/backend/src/vendor/SocketIO.ts
@@ -34,6 +34,10 @@ export default class SocketIO implements Vendor {
       },
     });
 
+    this.io.engine.on("headers", (headers) => {
+      headers["Access-Control-Allow-Private-Network"] = true;
+    });
+
     this.io.on("connection", () => {});
 
     this.downloadService.on("download-ready-start", this.onDownloadReadyStart);
diff --git a/packages/renderer/src/utils/socket.ts b/packages/renderer/src/utils/socket.ts
index 8577d0de..700c5015 100644
--- a/packages/renderer/src/utils/socket.ts
+++ b/packages/renderer/src/utils/socket.ts
@@ -6,7 +6,11 @@ export function getSocket() {
     return _instance;
   }
 
-  _instance = io("http://localhost:8899");
+  _instance = io("http://localhost:8899", {
+    extraHeaders: {
+      "Access-Control-Request-Private-Network": "true",
+    },
+  });
 
   return _instance;
 }