diff --git a/app/build.gradle b/app/build.gradle
index 771a2e3..db13ac1 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,8 +10,8 @@ android {
         applicationId "com.github.axet.audiorecorder"
         minSdkVersion 9
         targetSdkVersion 23 // 24+ file:// unable to open
-        versionCode 250
-        versionName "3.1.19"
+        versionCode 251
+        versionName "3.1.20"
     }
     signingConfigs {
         release {