diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index f6b961fd..0d4a9516 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 1ca3f7e9..0345a3c6 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-bin.zip
-distributionSha256Sum=98bd5fd2b30e070517e03c51cbb32beee3e2ee1a84003a5a5d748996d4b1b915
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-bin.zip
+distributionSha256Sum=e66e69dce8173dd2004b39ba93586a184628bc6c28461bc771d6835f7f9b0d28
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists