diff --git a/README.md b/README.md
index cabb13a..be0b6ea 100644
--- a/README.md
+++ b/README.md
@@ -24,10 +24,10 @@ Also supports simple preference dependency injection with free from reflection.
 Add below dependencies to your module's `build.gradle` file.
 ```gradle
 dependencies {
-    implementation "com.github.skydoves:preferenceroom:1.2.0"
-    annotationProcessor "com.github.skydoves:preferenceroom-processor:1.2.0"
+    implementation "com.github.skydoves:preferenceroom:1.2.1"
+    annotationProcessor "com.github.skydoves:preferenceroom-processor:1.2.1"
     // in kotlin project use kapt instead of annotationProcessor
-    kapt "com.github.skydoves:preferenceroom-processor:1.2.0"
+    kapt "com.github.skydoves:preferenceroom-processor:1.2.1"
 }
 ```
 
diff --git a/dependencies.gradle b/dependencies.gradle
index 08bc800..08de221 100644
--- a/dependencies.gradle
+++ b/dependencies.gradle
@@ -1,7 +1,7 @@
 ext.versions = [
     minSdk            : 15,
     compileSdk        : 29,
-    versionName       : '1.2.0',
+    versionName       : '1.2.1',
 
     gradleBuildTool   : '3.5.3',
     spotlessGradle    : '4.5.1',
@@ -16,7 +16,7 @@ ext.versions = [
     // for demo
     kotlin            : '1.3.72',
     gson              : '2.8.5',
-    googleMaterial    : '1.3.0-alpha01',
+    googleMaterial    : '1.3.0-alpha02',
 
     // unit test
     junit             : '4.13',