diff --git a/build.gradle b/build.gradle
index 679c113e..7e2dbc4f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,9 +20,9 @@ project.ext {
 dependencies {
     compile 'com.google.android.tools:dx:1.7'
     compile 'com.beust:jcommander:1.30'
-    compile 'org.slf4j:slf4j-api:1.6.6'
-    compile 'ch.qos.logback:logback-classic:1.0.9'
-    testCompile 'junit:junit:4.8.2'
+    compile 'org.slf4j:slf4j-api:1.7.5'
+    compile 'ch.qos.logback:logback-classic:1.0.11'
+    testCompile 'junit:junit:4.11'
 }
 
 repositories {
@@ -89,6 +89,6 @@ applicationDistribution.with {
 }
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '1.4'
+    gradleVersion = '1.5'
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 42d9b0e9..faa569a9 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 618eb88f..1512f108 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=http\://services.gradle.org/distributions/gradle-1.4-bin.zip
+distributionUrl=http\://services.gradle.org/distributions/gradle-1.5-bin.zip