diff --git a/mutex/pom.xml b/mutex/pom.xml
index 6e418c1d1..c9e0e83b7 100644
--- a/mutex/pom.xml
+++ b/mutex/pom.xml
@@ -29,8 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.11.0-SNAPSHOT</version>
-	<relativePath>../pom.xml</relativePath>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
   <artifactId>mutex</artifactId>
   <dependencies>
diff --git a/semaphore/pom.xml b/semaphore/pom.xml
index 2d0bfb907..a2dc143a1 100644
--- a/semaphore/pom.xml
+++ b/semaphore/pom.xml
@@ -29,8 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.11.0-SNAPSHOT</version>
-	<relativePath>../pom.xml</relativePath>
+    <version>1.12.0-SNAPSHOT</version>
   </parent>
   <artifactId>semaphore</artifactId>
   <dependencies>