diff --git a/pom.xml b/pom.xml
index f0e314197aed0df6f7bfd25b5b4dcdd59b6bbb51..5eb63b5fa52d80385f2b92844b0a98763956654a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -106,7 +106,7 @@
         <xxl-job.version>2.0.2</xxl-job.version>
 
         <!-- maven plugins -->
-        <flatten-maven-plugin.version>1.3.0</flatten-maven-plugin.version>
+        <flatten-maven-plugin.version>1.4.0</flatten-maven-plugin.version>
         <integration-maven-plugin.version>${revision}</integration-maven-plugin.version>
         <maven.repository.url>https://maven.schbrain.com/repository</maven.repository.url>
     </properties>