diff --git a/builder/pom.xml b/builder/pom.xml
index fae7ef6..1a07416 100644
--- a/builder/pom.xml
+++ b/builder/pom.xml
@@ -12,7 +12,7 @@
     </parent>
 
     <artifactId>kemitix-checkstyle-ruleset-builder</artifactId>
-    <version>2.1.1</version>
+    <version>2.2.0-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>Kemitix Checkstyle Ruleset Builder</name>
diff --git a/plugin-sample/pom.xml b/plugin-sample/pom.xml
index 20eb3fe..f8785db 100644
--- a/plugin-sample/pom.xml
+++ b/plugin-sample/pom.xml
@@ -8,7 +8,7 @@
     <!-- don't use parent to avoid using grandparent's checkstyle configuration -->
     <groupId>net.kemitix</groupId>
     <artifactId>kemitix-checkstyle-ruleset-plugin-sample</artifactId>
-    <version>2.1.1</version>
+    <version>2.2.0-SNAPSHOT</version>
 
     <name>Kemitix Checkstyle Ruleset Plugin Sample</name>
     <description>Sample usage of the Kemitix Checkstyle Ruleset Plugin</description>
diff --git a/plugin/pom.xml b/plugin/pom.xml
index 8208852..d3b24d5 100644
--- a/plugin/pom.xml
+++ b/plugin/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.kemitix</groupId>
         <artifactId>kemitix-checkstyle-ruleset-parent</artifactId>
-        <version>2.1.1</version>
+        <version>2.2.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>kemitix-checkstyle-ruleset-maven-plugin</artifactId>
diff --git a/pom.xml b/pom.xml
index ad63965..496da4f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>net.kemitix</groupId>
     <artifactId>kemitix-checkstyle-ruleset-parent</artifactId>
-    <version>2.1.1</version>
+    <version>2.2.0-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>Kemitix Checkstyle Ruleset (Parent)</name>
diff --git a/ruleset/pom.xml b/ruleset/pom.xml
index 5e42e90..265309e 100644
--- a/ruleset/pom.xml
+++ b/ruleset/pom.xml
@@ -7,11 +7,11 @@
     <parent>
         <groupId>net.kemitix</groupId>
         <artifactId>kemitix-checkstyle-ruleset-parent</artifactId>
-        <version>2.1.1</version>
+        <version>2.2.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>kemitix-checkstyle-ruleset</artifactId>
-    <version>2.1.1</version>
+    <version>2.2.0-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>Kemitix Checkstyle Ruleset</name>