diff --git a/manifest.xml b/manifest.xml
index 7edd9e4..488ef2a 100644
--- a/manifest.xml
+++ b/manifest.xml
@@ -133,7 +133,7 @@
     <hal format="hidl">
        <name>vendor.google.whitechapel.audio.audioext</name>
        <transport>hwbinder</transport>
-       <version>3.0</version>
+       <version>4.0</version>
        <interface>
            <name>IAudioExt</name>
            <instance>default</instance>