diff --git a/build.gradle b/build.gradle
index 2b8327b64..1670ab179 100644
--- a/build.gradle
+++ b/build.gradle
@@ -16,6 +16,7 @@ buildscript {
     jcenter()
     mavenCentral()
     mavenLocal()
+    google()
   }
   dependencies {
     classpath 'com.android.tools.build:gradle:2.3.3'
@@ -30,20 +31,21 @@ allprojects {
     jcenter()
     mavenCentral()
     mavenLocal()
+    google()
   }
 }
 
 apply plugin: 'com.android.application'
 
 dependencies {
-  androidTestCompile ('com.android.support.test.espresso:espresso-core:2.2.2') {
+  androidTestCompile ('com.android.support.test.espresso:espresso-core:+') {
     exclude module: 'support-annotations'
   }
-  androidTestCompile group: 'com.jayway.android.robotium', name: 'robotium-solo', version: '5.6.3'
-  androidTestCompile 'junit:junit:4.12'
-  compile group: 'org.apache.commons', name: 'commons-compress', version: '1.14'
+  androidTestCompile group: 'com.jayway.android.robotium', name: 'robotium-solo', version: '+'
+  androidTestCompile 'junit:junit:+'
+  compile group: 'org.apache.commons', name: 'commons-compress', version: '+'
   if (firebaseEnable()) {
-    compile 'com.google.firebase:firebase-messaging:11.0.4'
+    compile 'com.google.firebase:firebase-messaging:11.2.0'
   } else {
     compile fileTree(include: 'gcm.jar', dir: 'libs')
     compile 'com.android.support:support-v4:+'
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index fcf53b07b..c0173c8c0 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 763ce1376..c8438ef9a 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Apr 27 14:17:25 CEST 2017
+#Tue Aug 29 15:59:08 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-rc-1-bin.zip
diff --git a/gradlew b/gradlew
index 4453ccea3..cccdd3d51 100755
--- a/gradlew
+++ b/gradlew
@@ -33,11 +33,11 @@ DEFAULT_JVM_OPTS=""
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
 
-warn ( ) {
+warn () {
     echo "$*"
 }
 
-die ( ) {
+die () {
     echo
     echo "$*"
     echo
@@ -155,7 +155,7 @@ if $cygwin ; then
 fi
 
 # Escape application args
-save ( ) {
+save () {
     for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
     echo " "
 }
diff --git a/libLinphoneAndroidSdk.gradle b/libLinphoneAndroidSdk.gradle
index 25c13513a..28b28f2f7 100644
--- a/libLinphoneAndroidSdk.gradle
+++ b/libLinphoneAndroidSdk.gradle
@@ -5,9 +5,10 @@ buildscript {
         jcenter()
         mavenCentral()
         mavenLocal()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.0'
+        classpath 'com.android.tools.build:gradle:2.3.3'
     }
 }
 
@@ -16,6 +17,7 @@ allprojects {
         jcenter()
         mavenCentral()
         mavenLocal()
+        google()
     }
 }
 
@@ -26,8 +28,8 @@ configurations {
 apply plugin: 'com.android.library'
 
 dependencies {
-    compile group: 'org.apache.commons', name: 'commons-compress', version: '1.14'
-    javadocDeps group: 'org.apache.commons', name: 'commons-compress', version: '1.14'
+    compile group: 'org.apache.commons', name: 'commons-compress', version: '+'
+    javadocDeps group: 'org.apache.commons', name: 'commons-compress', version: '+'
 }
 
 def submoduleDir = ['submodules/mediastreamer2/java/src',
diff --git a/liblinphone_tester/build.gradle b/liblinphone_tester/build.gradle
index 401d8de68..8403f092e 100644
--- a/liblinphone_tester/build.gradle
+++ b/liblinphone_tester/build.gradle
@@ -12,7 +12,7 @@ buildscript {
     mavenLocal()
   }
   dependencies {
-    classpath 'com.android.tools.build:gradle:2.3.3'
+    classpath 'com.android.tools.build:gradle:3.0.0-alpha9'
   }
 }
 
diff --git a/linphoneAndroidSdk.gradle b/linphoneAndroidSdk.gradle
index 81524b67b..c699b2c4a 100644
--- a/linphoneAndroidSdk.gradle
+++ b/linphoneAndroidSdk.gradle
@@ -11,9 +11,10 @@ buildscript {
         jcenter()
         mavenCentral()
         mavenLocal()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.0'
+        classpath 'com.android.tools.build:gradle:2.3.3'
         if (googleFile.exists()) {
             classpath 'com.google.gms:google-services:3.1.0'
         }
@@ -25,15 +26,16 @@ allprojects {
         jcenter()
         mavenCentral()
         mavenLocal()
+        google()
     }
 }
 
 apply plugin: 'com.android.library'
 
 dependencies {
-    compile group: 'org.apache.commons', name: 'commons-compress', version: '1.14'
+    compile group: 'org.apache.commons', name: 'commons-compress', version: '+'
     if (firebaseEnable()) {
-        compile 'com.google.firebase:firebase-messaging:11.0.2'
+        compile 'com.google.firebase:firebase-messaging:11.2.0'
     } else {
         compile fileTree(include: 'gcm.jar', dir: 'libs')
         compile 'com.android.support:support-v4:+'