diff --git a/app/build.gradle b/app/build.gradle
index c201ad4..18710cc 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -20,7 +20,7 @@ android {
         applicationId 'com.wireguard.android'
         minSdkVersion 21
         targetSdkVersion 27
-        versionCode 401
+        versionCode 402
         versionName '0.4.0'
     }
     externalNativeBuild {
diff --git a/app/tools/wireguard-go b/app/tools/wireguard-go
index 26a56a6..ac99123 160000
--- a/app/tools/wireguard-go
+++ b/app/tools/wireguard-go
@@ -1 +1 @@
-Subproject commit 26a56a652eeeece7677ba4f1896da34c83930652
+Subproject commit ac9912345b4da5034ea93f5f245ea2ce04815bd5