diff --git a/.gitattributes b/.gitattributes
index d0c0c4c1dc..e6141d8894 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1,3 @@
 * text eol=lf
 *.png binary
+*.jar binary
diff --git a/.gitignore b/.gitignore
index a1a7c08822..622ef384ba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,7 +19,6 @@ gradle-app.setting
 # Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
 !gradle-wrapper.jar
 
-
 ### Eclipse ###
 *.pydevproject
 .metadata
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
old mode 100644
new mode 100755
index 51288f9c2f..99340b4ad1
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 d35feb4e47..2c2bbe5f9a 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,5 @@
-#Wed Dec 21 14:32:05 PST 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4.1-bin.zip
diff --git a/gradlew b/gradlew
index 4453ccea33..cccdd3d517 100755
--- a/gradlew
+++ b/gradlew
@@ -33,11 +33,11 @@ DEFAULT_JVM_OPTS=""
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
 
-warn ( ) {
+warn () {
     echo "$*"
 }
 
-die ( ) {
+die () {
     echo
     echo "$*"
     echo
@@ -155,7 +155,7 @@ if $cygwin ; then
 fi
 
 # Escape application args
-save ( ) {
+save () {
     for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
     echo " "
 }
diff --git a/plugin-gradle/src/test/java/com/diffplug/gradle/spotless/GradleIntegrationTest.java b/plugin-gradle/src/test/java/com/diffplug/gradle/spotless/GradleIntegrationTest.java
index 49e1343051..ec504dcd4b 100644
--- a/plugin-gradle/src/test/java/com/diffplug/gradle/spotless/GradleIntegrationTest.java
+++ b/plugin-gradle/src/test/java/com/diffplug/gradle/spotless/GradleIntegrationTest.java
@@ -42,8 +42,13 @@ public void gitAttributes() throws IOException {
 		write(".gitattributes", "* text eol=lf");
 	}
 
-	protected GradleRunner gradleRunner() throws IOException {
-		return GradleRunner.create().withProjectDir(rootFolder()).withPluginClasspath();
+	protected final GradleRunner gradleRunner() throws IOException {
+		return GradleRunner.create()
+				// Test against Gradle 2.14.1 in order to maintain backwards compatibility.
+				// https://github.com/diffplug/spotless/issues/161
+				.withGradleVersion("2.14.1")
+				.withProjectDir(rootFolder())
+				.withPluginClasspath();
 	}
 
 	/** Dumps the complete file contents of the folder to the console. */