diff --git a/build.gradle b/build.gradle
index c117287d9..f817b7e64 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,17 +4,13 @@ import java.security.MessageDigest
 
 buildscript {
     repositories {
-        maven {
-            url 'https://maven.google.com/'
-            name 'Google'
-        }
+        google()
         maven {
             url "https://repo1.maven.org/maven2"
-            jcenter()
         }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.0'
+        classpath 'com.android.tools.build:gradle:3.3.2'
         classpath files('libs/gradle-witness.jar')
     }
 }
@@ -53,9 +49,6 @@ repositories {
             includeGroupByRegex "com\\.amulyakhare.*"
         }
     }
-    maven {
-        url "https://maven.google.com"
-    }
     google()
     jcenter()
     mavenLocal()
diff --git a/buildSrc/build.gradle b/buildSrc/build.gradle
index 713270474..889ee1d68 100644
--- a/buildSrc/build.gradle
+++ b/buildSrc/build.gradle
@@ -1,9 +1,9 @@
 apply plugin: 'java-gradle-plugin'
 
 repositories {
-    mavenCentral()
+    google()
 }
 
 dependencies {
-    compile group: 'com.android.tools.build', name: 'apksig', version: '2.3.0'
+    compile 'com.android.tools.build:apksig:3.3.2'
 }
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index fbd0c46ec..87b738cbd 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 096b12ad9..1b2b07cfb 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,5 @@
-#Mon Nov 06 08:48:17 PST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.2.1-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.1-all.zip
diff --git a/gradlew b/gradlew
index 4453ccea3..af6708ff2 100755
--- a/gradlew
+++ b/gradlew
@@ -28,16 +28,16 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+DEFAULT_JVM_OPTS='"-Xmx64m"'
 
 # 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/gradlew.bat b/gradlew.bat
index e95643d6a..0f8d5937c 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -14,7 +14,7 @@ set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
+set DEFAULT_JVM_OPTS="-Xmx64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome