diff --git a/sample-pushnotifications-java/app/build.gradle b/sample-pushnotifications-java/app/build.gradle
index 346614bb3..18be60e2f 100644
--- a/sample-pushnotifications-java/app/build.gradle
+++ b/sample-pushnotifications-java/app/build.gradle
@@ -27,8 +27,8 @@ android {
         applicationId "com.quickblox.sample.pushnotifications.java"
         minSdkVersion 21
         targetSdkVersion 31
-        versionCode 402000
-        versionName '4.0.2-java'
+        versionCode 403000
+        versionName '4.0.3'
         multiDexEnabled true
     }
 
diff --git a/sample-pushnotifications-java/app/proguard-rules.pro b/sample-pushnotifications-java/app/proguard-rules.pro
index be6afe8c2..42dfd99d3 100755
--- a/sample-pushnotifications-java/app/proguard-rules.pro
+++ b/sample-pushnotifications-java/app/proguard-rules.pro
@@ -33,4 +33,7 @@
 -keep class com.quickblox.** { *; }
 
 #google gms
--keep class com.google.android.gms.** { *; }
\ No newline at end of file
+-keep class com.google.android.gms.** { *; }
+
+#json
+-keep class org.json.** { *; }
\ No newline at end of file
diff --git a/sample-pushnotifications-java/build.gradle b/sample-pushnotifications-java/build.gradle
index 66a974f42..2c179ef6b 100644
--- a/sample-pushnotifications-java/build.gradle
+++ b/sample-pushnotifications-java/build.gradle
@@ -6,7 +6,7 @@ buildscript {
 
     dependencies {
         classpath 'com.android.tools.build:gradle:4.2.2'
-        classpath 'com.google.gms:google-services:4.3.10'
+        classpath 'com.google.gms:google-services:4.3.14'
     }
 }
 
@@ -22,13 +22,13 @@ ext {
     dimensionDefault = 'default'
 
     // QuickBlox SDK version
-    qbSdkVersion = '3.9.16'
+    qbSdkVersion = '3.11.0'
 
     // Firebase
-    firebaseCoreVersion = '21.0.0'
+    firebaseCoreVersion = '21.1.1'
 
     // Material
-    materialVersion = '1.6.0'
+    materialVersion = '1.6.1'
 
     // RobotoTextView
     robotoTextViewVersion = '4.0.0'