diff --git a/CHANGES.md b/CHANGES.md
index cc81bf1701..bdc67d27cf 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -8,6 +8,7 @@ You might be looking for:
 ### Version 1.12.0-SNAPSHOT - TBD (javadoc [lib](https://diffplug.github.io/spotless/javadoc/spotless-lib/snapshot/) [lib-extra](https://diffplug.github.io/spotless/javadoc/spotless-lib-extra/snapshot/), [snapshot repo](https://oss.sonatype.org/content/repositories/snapshots/com/diffplug/spotless/))
 
 * Fixed a bug in `LicenseHeaderStep` which caused an exception with some malformed date-aware licenses. ([#222](https://github.com/diffplug/spotless/pull/222))
+* Updated default ktlint from 0.14.0 to 0.21.0
 
 ### Version 1.11.0 - February 26th 2018 (javadoc [lib](https://diffplug.github.io/spotless/javadoc/spotless-lib/1.11.0/) [lib-extra](https://diffplug.github.io/spotless/javadoc/spotless-lib-extra/1.11.0/), artifact [lib]([jcenter](https://bintray.com/diffplug/opensource/spotless-lib), [lib-extra]([jcenter](https://bintray.com/diffplug/opensource/spotless-lib-extra)))
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 2c2bbe5f9a..ea720f986f 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-4.4.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-bin.zip
diff --git a/lib/src/main/java/com/diffplug/spotless/kotlin/KtLintStep.java b/lib/src/main/java/com/diffplug/spotless/kotlin/KtLintStep.java
index 5467fae6fd..3de9aef326 100644
--- a/lib/src/main/java/com/diffplug/spotless/kotlin/KtLintStep.java
+++ b/lib/src/main/java/com/diffplug/spotless/kotlin/KtLintStep.java
@@ -34,7 +34,7 @@ public class KtLintStep {
 	// prevent direct instantiation
 	private KtLintStep() {}
 
-	private static final String DEFAULT_VERSION = "0.14.0";
+	private static final String DEFAULT_VERSION = "0.21.0";
 	static final String NAME = "ktlint";
 	static final String MAVEN_COORDINATE = "com.github.shyiko:ktlint:";
 
diff --git a/plugin-gradle/CHANGES.md b/plugin-gradle/CHANGES.md
index 4096bc9141..a812f038c3 100644
--- a/plugin-gradle/CHANGES.md
+++ b/plugin-gradle/CHANGES.md
@@ -3,8 +3,8 @@
 ### Version 3.11.0-SNAPSHOT - TBD ([javadoc](https://diffplug.github.io/spotless/javadoc/snapshot/), [snapshot](https://oss.sonatype.org/content/repositories/snapshots/com/diffplug/spotless/spotless-plugin-gradle/))
 
 * Migrated `plugin-gradle`'s tests away from `TaskInternal#execute` to a custom method to help with Gradle 5.0 migration later on. ([#208](https://github.com/diffplug/spotless/pull/208))
-
 * Fixed a bug in `LicenseHeaderStep` which caused an exception with some malformed date-aware licenses. ([#222](https://github.com/diffplug/spotless/pull/222))
+* Updated default ktlint from 0.14.0 to 0.21.0
 
 ### Version 3.10.0 - February 15th 2018 ([javadoc](https://diffplug.github.io/spotless/javadoc/spotless-plugin-gradle/3.10.0/), [jcenter](https://bintray.com/diffplug/opensource/spotless-plugin-gradle/3.10.0))
 
diff --git a/plugin-maven/CHANGES.md b/plugin-maven/CHANGES.md
index d9d696745b..6a83ec14f5 100644
--- a/plugin-maven/CHANGES.md
+++ b/plugin-maven/CHANGES.md
@@ -4,6 +4,7 @@
 
 * Fixed a bug in `LicenseHeaderStep` which caused an exception with some malformed date-aware licenses. ([#222](https://github.com/diffplug/spotless/pull/222))
 * Added support for Kotlin and Ktlint in Maven plugin ([#223](https://github.com/diffplug/spotless/pull/223)).
+* Updated default ktlint from 0.14.0 to 0.21.0
 
 ### Version 1.0.0.BETA4 - February 27th 2018 ([javadoc](https://diffplug.github.io/spotless/javadoc/spotless-maven-plugin/1.0.0.BETA4/), [jcenter](https://bintray.com/diffplug/opensource/spotless-maven-plugin/1.0.0.BETA4))