diff --git a/pom.xml b/pom.xml
index b0812ad..7e8f3d9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <abstract-operator.version>0.2.8</abstract-operator.version>
+        <abstract-operator.version>0.5.2</abstract-operator.version>
     </properties>
 
     <dependencies>