diff --git a/automotive/vehicle/aidl/Android.bp b/automotive/vehicle/aidl/Android.bp
index 9c8d9c5..3b93bca 100644
--- a/automotive/vehicle/aidl/Android.bp
+++ b/automotive/vehicle/aidl/Android.bp
@@ -27,7 +27,7 @@
     srcs: [
         "android/hardware/automotive/vehicle/*.aidl",
     ],
-    frozen: false,
+    frozen: true,
     stability: "vintf",
     backend: {
         cpp: {
@@ -47,6 +47,11 @@
             version: "1",
             imports: [],
         },
+        {
+            version: "2",
+            imports: [],
+        },
+
     ],
 
 }