diff --git a/CHANGES.md b/CHANGES.md
index d884759825..53976671ba 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -12,6 +12,8 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 ## [Unreleased]
 ### Fixed
 * Fix Clang not knowing the filename and changing the format ([#1268](https://github.com/diffplug/spotless/pull/1268) fixes [#1267](https://github.com/diffplug/spotless/issues/1267)).
+### Changes
+* Bump default `diktat` version to latest `1.2.1` -> `1.2.3` ([#1266](https://github.com/diffplug/spotless/pull/1266))
 
 ## [2.28.0] - 2022-07-28
 ### Added
diff --git a/lib/build.gradle b/lib/build.gradle
index 4aba993334..e14e5c6438 100644
--- a/lib/build.gradle
+++ b/lib/build.gradle
@@ -51,7 +51,7 @@ dependencies {
 	ktlintCompileOnly "com.pinterest.ktlint:ktlint-ruleset-experimental:$VER_KTLINT"
 	ktlintCompileOnly "com.pinterest.ktlint:ktlint-ruleset-standard:$VER_KTLINT"
 
-	String VER_DIKTAT = "1.2.1"
+	String VER_DIKTAT = "1.2.3"
 	diktatCompileOnly "org.cqfn.diktat:diktat-rules:$VER_DIKTAT"
 
 	// used for markdown formatting
diff --git a/lib/src/main/java/com/diffplug/spotless/kotlin/DiktatStep.java b/lib/src/main/java/com/diffplug/spotless/kotlin/DiktatStep.java
index ff3e3240cf..f1cd3103d9 100644
--- a/lib/src/main/java/com/diffplug/spotless/kotlin/DiktatStep.java
+++ b/lib/src/main/java/com/diffplug/spotless/kotlin/DiktatStep.java
@@ -32,7 +32,7 @@ private DiktatStep() {}
 
 	private static final String MIN_SUPPORTED_VERSION = "1.2.1";
 
-	private static final String DEFAULT_VERSION = "1.2.1";
+	private static final String DEFAULT_VERSION = "1.2.3";
 	static final String NAME = "diktat";
 	static final String PACKAGE_DIKTAT = "org.cqfn.diktat";
 	static final String MAVEN_COORDINATE = PACKAGE_DIKTAT + ":diktat-rules:";
diff --git a/plugin-gradle/CHANGES.md b/plugin-gradle/CHANGES.md
index ebfa7d978e..2c9e995b6f 100644
--- a/plugin-gradle/CHANGES.md
+++ b/plugin-gradle/CHANGES.md
@@ -5,6 +5,8 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 ## [Unreleased]
 ### Fixed
 * Fix Clang not knowing the filename and changing the format ([#1268](https://github.com/diffplug/spotless/pull/1268) fixes [#1267](https://github.com/diffplug/spotless/issues/1267)).
+### Changes
+* Bump default `diktat` version to latest `1.2.1` -> `1.2.3` ([#1266](https://github.com/diffplug/spotless/pull/1266))
 
 ## [6.9.0] - 2022-07-28
 ### Added
diff --git a/plugin-maven/CHANGES.md b/plugin-maven/CHANGES.md
index 073b77ca27..4b5cc3e7b3 100644
--- a/plugin-maven/CHANGES.md
+++ b/plugin-maven/CHANGES.md
@@ -5,6 +5,8 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 ## [Unreleased]
 ### Fixed
 * Fix Clang not knowing the filename and changing the format ([#1268](https://github.com/diffplug/spotless/pull/1268) fixes [#1267](https://github.com/diffplug/spotless/issues/1267)).
+### Changes
+* Bump default `diktat` version to latest `1.2.1` -> `1.2.3` ([#1266](https://github.com/diffplug/spotless/pull/1266))
 
 ## [2.24.0] - 2022-07-28
 ### Added