The version contains invalid character(s)

Author: mialeska

pom.xml

@@ -16,6 +16,7 @@
     <properties>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <revision>5.3.1</revision>
     </properties>
 
     <scm>