diff --git a/build.gradle b/build.gradle
index 210cecb..f8320d0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -82,7 +82,7 @@ repositories {
 
 dependencies {
     compile 'com.google.guava:guava:[10.+,)'
-    compile 'com.google.code.findbugs:jsr305:2.0.2'
+    compileOnly 'com.google.code.findbugs:jsr305:2.0.2'
 
     // junit testing
     testCompile 'junit:junit:4.11'
@@ -200,4 +200,4 @@ idea {
         languageLevel = project_jdk
         vcs = 'Git'
     }
-}
\ No newline at end of file
+}
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 9ae3447..1813266 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sat May 09 20:16:02 CDT 2015
+#Mon Aug 07 10:08:34 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.12-bin.zip