diff --git a/boat-maven-plugin/src/test/java/com/backbase/oss/boat/LintMojoTests.java b/boat-maven-plugin/src/test/java/com/backbase/oss/boat/LintMojoTests.java
index 86d252f93..011f02667 100644
--- a/boat-maven-plugin/src/test/java/com/backbase/oss/boat/LintMojoTests.java
+++ b/boat-maven-plugin/src/test/java/com/backbase/oss/boat/LintMojoTests.java
@@ -21,7 +21,7 @@ class LintMojoTests {
     @Test
     void testFailOnWarningNoWarnings() throws MojoFailureException, MojoExecutionException {
         LintMojo lintMojo = new LintMojo();
-        lintMojo.setIgnoreRules(Arrays.array("219", "105", "104", "151", "134", "115","M0012"));
+        lintMojo.setIgnoreRules(Arrays.array("219", "105", "104", "151", "134", "115","M0012", "224"));
         lintMojo.setInput(getFile("/oas-examples/no-lint-warnings.yaml"));
         lintMojo.setFailOnWarning(true);
         lintMojo.execute();
diff --git a/boat-quay/boat-quay-lint/pom.xml b/boat-quay/boat-quay-lint/pom.xml
index 11294a42a..5c8700a97 100644
--- a/boat-quay/boat-quay-lint/pom.xml
+++ b/boat-quay/boat-quay-lint/pom.xml
@@ -16,7 +16,7 @@
     <properties>
         <sonar.coverage.jacoco.xmlReportPaths>${basedir}/../${aggregate.report.dir}
         </sonar.coverage.jacoco.xmlReportPaths>
-        <kotlin.version>1.3.61</kotlin.version>
+        <kotlin.version>1.4.10</kotlin.version>
         <kotlin.compiler.incremental>false</kotlin.compiler.incremental>
     </properties>
 
@@ -25,7 +25,7 @@
             <dependency>
                 <groupId>org.jetbrains.kotlin</groupId>
                 <artifactId>kotlin-stdlib</artifactId>
-                <version>1.3.61</version>
+                <version>${kotlin.version}</version>
             </dependency>
         </dependencies>
     </dependencyManagement>
diff --git a/boat-quay/boat-quay-rules/pom.xml b/boat-quay/boat-quay-rules/pom.xml
index fdbf40bf6..9a5ac25a2 100644
--- a/boat-quay/boat-quay-rules/pom.xml
+++ b/boat-quay/boat-quay-rules/pom.xml
@@ -16,10 +16,11 @@
     <properties>
         <sonar.coverage.jacoco.xmlReportPaths>${basedir}/../${aggregate.report.dir}
         </sonar.coverage.jacoco.xmlReportPaths>
-        <kotlin.version>1.3.61</kotlin.version>
+        <kotlin.version>1.4.10</kotlin.version>
         <kotlin.compiler.incremental>false</kotlin.compiler.incremental>
         <auto-service.version>1.0-rc7</auto-service.version>
         <dokka.version>1.4.10.2</dokka.version>
+        <zally.version>2.1.0</zally.version>
     </properties>
 
     <dependencyManagement>
@@ -49,39 +50,37 @@
     <dependencies>
 
         <dependency>
-            <groupId>org.zalando</groupId>
-            <artifactId>zally-core</artifactId>
-            <version>2.0.0</version>
-            <exclusions>
-                <exclusion>
-                    <groupId>io.github.config4k</groupId>
-                    <artifactId>config4k</artifactId>
-                </exclusion>
-            </exclusions>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-stdlib</artifactId>
         </dependency>
-
         <dependency>
-            <groupId>io.github.config4k</groupId>
-            <artifactId>config4k</artifactId>
-            <version>0.4.2</version>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-reflect</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>de.mpg.mpi-inf</groupId>
+            <artifactId>javatools</artifactId>
+            <version>2017-06-28</version>
+        </dependency>
+        <dependency>
+            <groupId>org.zalando</groupId>
+            <artifactId>zally-core</artifactId>
+            <version>${zally.version}</version>
         </dependency>
-
         <dependency>
             <groupId>org.zalando</groupId>
             <artifactId>zally-rule-api</artifactId>
-            <version>2.0.0</version>
+            <version>${zally.version}</version>
         </dependency>
-
         <dependency>
             <groupId>org.zalando</groupId>
             <artifactId>zally-ruleset-zalando</artifactId>
-            <version>2.0.0</version>
+            <version>${zally.version}</version>
         </dependency>
-
         <dependency>
             <groupId>org.zalando</groupId>
             <artifactId>zally-ruleset-zally</artifactId>
-            <version>2.0.0</version>
+            <version>${zally.version}</version>
         </dependency>
 
         <dependency>