diff --git a/build.gradle b/build.gradle
index a868f2d..b63575a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -52,5 +52,5 @@ subprojects {
 }
 
 task wrapper(type: Wrapper) {
-	gradleVersion = '4.7'
+	gradleVersion = '4.9'
 }
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 99340b4..91ca28c 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 5a17e74..a95009c 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.7-bin.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-bin.zip
 zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists