diff --git a/.gitignore b/.gitignore
index c74338aa32df4f2eaa32d9cd8a57ceea18d44d76..b6c00def98cbee979b7c8e4d583d8b28da474cac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,11 +1,9 @@
 # Gradle
 .gradle
 /build/
-gradle/wrapper/gradle-wrapper.properties
 
 # Java
 *.class
-*.jar
 /.classpath
 /.project
 
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000000000000000000000000000000000..94028048d0056911c625a3485f7a9f8930e878c1
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000000000000000000000000000000000..1549331b7c0abb345bdf62c9d4e0f8f73e40db61
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Fri Jul 28 17:36:49 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.4-bin.zip