diff --git a/universal-adapter-rx2/build.gradle b/universal-adapter-rx2/build.gradle
index 40f81d0..020543f 100644
--- a/universal-adapter-rx2/build.gradle
+++ b/universal-adapter-rx2/build.gradle
@@ -4,6 +4,8 @@ plugins {
     id 'com.github.dcendents.android-maven'
 }
 
+group = 'com.github.jacek-marchwicki.recyclerview-changes-detector'
+
 android {
     compileSdkVersion 29
     buildToolsVersion "29.0.3"
diff --git a/universal-adapter-rx3/build.gradle b/universal-adapter-rx3/build.gradle
index d76e501..0debd00 100644
--- a/universal-adapter-rx3/build.gradle
+++ b/universal-adapter-rx3/build.gradle
@@ -3,6 +3,8 @@ plugins {
     id 'kotlin-android'
 }
 
+group = 'com.github.jacek-marchwicki.recyclerview-changes-detector'
+
 android {
     compileSdkVersion 29
     buildToolsVersion "30.0.3"