diff --git a/pom.xml b/pom.xml
index 73e5dc6..7d9a1c5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>net.kemitix</groupId>
@@ -40,15 +41,13 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <kemitix.build.directory>target</kemitix.build.directory>
-        <kemitix-checkstyle-ruleset.version>1.0.0</kemitix-checkstyle-ruleset.version>
+        <kemitix-checkstyle-ruleset.version>2.0.0-SNAPSHOT</kemitix-checkstyle-ruleset.version>
+        <kemitix-checkstyle-ruleset.level>5-complexity</kemitix-checkstyle-ruleset.level>
 
         <maven-javadoc-plugin.version>2.10.4</maven-javadoc-plugin.version>
         <maven-source-plugin.version>3.0.1</maven-source-plugin.version>
         <maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
         <maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
-        <maven-checkstyle-plugin.version>2.17</maven-checkstyle-plugin.version>
-        <checkstyle.version>7.3</checkstyle.version>
-        <sevntu-checkstyle-maven-plugin.version>1.23.0</sevntu-checkstyle-maven-plugin.version>
         <maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
         <maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
         <maven-failsafe-plugin.version>2.19.1</maven-failsafe-plugin.version>
@@ -148,41 +147,21 @@
 
     <build>
         <directory>${kemitix.build.directory}</directory>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>org.apache.maven.plugins</groupId>
-                    <artifactId>maven-checkstyle-plugin</artifactId>
-                    <dependencies>
-                        <dependency>
-                            <groupId>com.puppycrawl.tools</groupId>
-                            <artifactId>checkstyle</artifactId>
-                            <version>${checkstyle.version}</version>
-                        </dependency>
-                        <dependency>
-                            <groupId>com.github.sevntu.checkstyle</groupId>
-                            <artifactId>sevntu-checkstyle-maven-plugin</artifactId>
-                            <version>${sevntu-checkstyle-maven-plugin.version}</version>
-                        </dependency>
-                        <dependency>
-                            <groupId>net.kemitix</groupId>
-                            <artifactId>kemitix-checkstyle-ruleset</artifactId>
-                            <version>${kemitix-checkstyle-ruleset.version}</version>
-                        </dependency>
-                    </dependencies>
-                    <configuration>
-                        <configLocation>net/kemitix/checkstyle.xml</configLocation>
-                        <encoding>UTF-8</encoding>
-                        <consoleOutput>true</consoleOutput>
-                        <failOnViolation>true</failOnViolation>
-                        <failsOnError>true</failsOnError>
-                        <linkXRef>true</linkXRef>
-                    </configuration>
-                </plugin><!-- maven-checkstyle-plugin -->
-            </plugins>
-        </pluginManagement>
 
         <plugins>
+            <plugin>
+                <groupId>net.kemitix</groupId>
+                <artifactId>kemitix-checkstyle-ruleset-maven-plugin</artifactId>
+                <version>${kemitix-checkstyle-ruleset.version}</version>
+                <executions>
+                    <execution>
+                        <phase>validate</phase>
+                        <goals>
+                            <goal>${kemitix-checkstyle-ruleset.level}</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin><!-- kemitix-checkstyle-ruleset-maven-plugin -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
@@ -224,22 +203,6 @@
                 </executions>
             </plugin><!-- maven-failsafe-plugin -->
 
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>${maven-checkstyle-plugin.version}</version>
-                <executions>
-                    <execution>
-                        <id>validate</id>
-                        <phase>validate</phase>
-                        <goals>
-                            <goal>check</goal>
-                            <goal>checkstyle</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin><!-- maven-checkstyle-plugin -->
-
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-pmd-plugin</artifactId>
@@ -383,18 +346,6 @@
                 <artifactId>jacoco-maven-plugin</artifactId>
                 <version>${jacoco-maven-plugin.version}</version>
             </plugin><!-- jacoco-maven-plugin -->
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>${maven-checkstyle-plugin.version}</version>
-                <reportSets>
-                    <reportSet>
-                        <reports>
-                            <report>checkstyle</report>
-                        </reports>
-                    </reportSet>
-                </reportSets>
-            </plugin><!-- maven-checkstyle-plugin -->
 
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>