diff --git i/gradle/wrapper/gradle-wrapper.properties w/gradle/wrapper/gradle-wrapper.properties
index 1ba7206..ee69dd6 100644
--- i/gradle/wrapper/gradle-wrapper.properties
+++ w/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.0.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists