diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index eac0688..166610e 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -1,5 +1,8 @@
 # Release Notes
 
+### 6.4.1
+* Update Android SDK to v6.4.1
+
 ### 6.4.0
 * Update Android SDK to v6.4.0
 
diff --git a/Readme.md b/Readme.md
index 512421a..51d5761 100644
--- a/Readme.md
+++ b/Readme.md
@@ -21,7 +21,7 @@ You can track installs, updates and sessions and also track additional in-app ev
 
 ---
 
-Built with AppsFlyer Android SDK `v6.4.0`
+Built with AppsFlyer Android SDK `v6.4.1`
 
 ## Table of content
 
@@ -76,7 +76,7 @@ AppsFlyer supports the `identify` and `track` methods.
 
 Add the AppsFlyer Segment Integration dependency to your app `build.gradle` file.
 ```java
-compile 'com.appsflyer:segment-android-integration:6.4.0'
+compile 'com.appsflyer:segment-android-integration:6.4.1'
 compile 'com.android.installreferrer:installreferrer:2.1'
 ```
 
diff --git a/app/build.gradle b/app/build.gradle
index be8876d..8be9ec4 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -22,7 +22,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.appsflyer:af-android-sdk:6.4.0'
+    implementation 'com.appsflyer:af-android-sdk:6.4.1'
     compileOnly 'com.android.installreferrer:installreferrer:2.1'
     compileOnly 'com.segment.analytics.android:analytics:4.+'
     testImplementation 'junit:junit:4.12'
diff --git a/gradle.properties b/gradle.properties
index 116b481..490230e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -19,8 +19,8 @@
 
 GROUP=com.appsflyer
 
-VERSION_CODE=5
-VERSION_NAME=6.4.0
+VERSION_CODE=6
+VERSION_NAME=6.4.1
 POM_ARTIFACT_ID=segment-android-integration
 POM_PACKAGING=aar
 
diff --git a/segmenttestapp/build.gradle b/segmenttestapp/build.gradle
index f090a9b..f08cbae 100644
--- a/segmenttestapp/build.gradle
+++ b/segmenttestapp/build.gradle
@@ -27,7 +27,7 @@ dependencies {
     implementation project(path: ':app')
     testImplementation 'junit:junit:4.12'
     implementation 'com.android.support:appcompat-v7:28.0.0'
-    implementation 'com.appsflyer:af-android-sdk:6.4.0'
+    implementation 'com.appsflyer:af-android-sdk:6.4.1'
     //noinspection GradleDynamicVersion
     implementation 'com.segment.analytics.android:analytics:4.+'
 //    compile 'com.appsflyer:segment-android-integration:6.3.2'