diff --git a/build.gradle b/build.gradle
index f07d012..3b51b9b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,13 +5,7 @@ def getPackageName() {
   return "org.linphone"
 }
 
-def firebaseEnable() {
-  File googleFile = new File('google-services.json')
-  return googleFile.exists()
-}
-
 buildscript {
-  File googleFile = new File('google-services.json')
   repositories {
     jcenter()
     mavenCentral()
@@ -20,9 +14,6 @@ buildscript {
   }
   dependencies {
     classpath 'com.android.tools.build:gradle:2.3.3'
-    if (googleFile.exists()) {
-      classpath 'com.google.gms:google-services:3.+'
-    }
   }
 }
 
@@ -43,17 +34,8 @@ dependencies {
   }
   androidTestCompile 'com.jayway.android.robotium:robotium-solo:+'
   androidTestCompile 'junit:junit:+'
-  compile 'org.apache.commons:commons-compress:+'
-  if (firebaseEnable()) {
-    compile 'com.google.firebase:firebase-messaging:11.+'
-  } else {
-    compile fileTree(include: 'gcm.jar', dir: 'libs')
-    compile 'com.android.support:support-v4:+'
-  }
-}
-
-if (firebaseEnable()) {
-  apply plugin: 'com.google.gms.google-services'
+  compile 'org.apache.commons:commons-compress:1.15'
+  compile 'com.android.support:support-v4:26.1.0'
 }
 
 //// Submodule Dir /////
@@ -66,14 +48,6 @@ def submoduleDir = ['submodules/mediastreamer2/java/src',
 
 ///// Exclude Files /////
 def excludeFiles = []
-// Exclude firebase file if not enable
-if (!firebaseEnable()) {
-  excludeFiles.add('**/Firebase*')
-  println '[Push Notification] Firebase disabled'
-} else {
-  excludeFiles.add('**/gcm*')
-  println '[Push Notification] Firebase enabled'
-}
 excludeFiles.add('**/mediastream/MediastreamerActivity.java')
 
 def excludePackage = []
diff --git a/linphoneAndroidSdk.gradle b/linphoneAndroidSdk.gradle
index c699b2c..60d29fd 100644
--- a/linphoneAndroidSdk.gradle
+++ b/linphoneAndroidSdk.gradle
@@ -1,12 +1,7 @@
 // Project information
 buildDir = 'bin'
-def firebaseEnable() {
-    File googleFile = new File('google-services.json')
-    return googleFile.exists()
-}
 
 buildscript {
-    File googleFile = new File('google-services.json')
     repositories {
         jcenter()
         mavenCentral()
@@ -15,9 +10,6 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:2.3.3'
-        if (googleFile.exists()) {
-            classpath 'com.google.gms:google-services:3.1.0'
-        }
     }
 }
 
@@ -34,16 +26,6 @@ apply plugin: 'com.android.library'
 
 dependencies {
     compile group: 'org.apache.commons', name: 'commons-compress', version: '+'
-    if (firebaseEnable()) {
-        compile 'com.google.firebase:firebase-messaging:11.2.0'
-    } else {
-        compile fileTree(include: 'gcm.jar', dir: 'libs')
-        compile 'com.android.support:support-v4:+'
-    }
-}
-
-if (firebaseEnable()) {
-    apply plugin: 'com.google.gms.google-services'
 }
 
 
@@ -55,12 +37,6 @@ def srcDirs = ['submodules/mediastreamer2/java/src',
                     'src/android']
 
 def excludeFiles = []
-// Exclude firebase file if not enable
-if (!firebaseEnable()) {
-    excludeFiles.add('**/Firebase*')
-} else {
-    excludeFiles.add('**/gcm*')
-}
 excludeFiles.add('**/mediastream/MediastreamerActivity.java')
 
 def excludePackage = []