diff --git a/build.gradle b/build.gradle
index d87b3a2..c8b09b3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -40,7 +40,7 @@ dependencies {
 }
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '4.2'
+    gradleVersion = '4.3.1'
 }
 
 task sourcesJar(type: Jar) {
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 736fb7d..6b6ea3a 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 52dd1f0..0e680f3 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=https\://services.gradle.org/distributions/gradle-4.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.3.1-bin.zip