diff --git a/pom.xml b/pom.xml
index eaf9f4b..b690b8c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -64,7 +64,7 @@
     <maven.compiler.target>1.8</maven.compiler.target>
     <!-- plugin -->
     <spring-javaformat.plugin.version>0.0.47</spring-javaformat.plugin.version>
-    <flatten-maven-plugin.version>1.7.1</flatten-maven-plugin.version>
+    <flatten-maven-plugin.version>1.7.3</flatten-maven-plugin.version>
     <maven-resources-plugin.version>3.3.1</maven-resources-plugin.version>
     <git-commit-id-plugin.version>3.0.1</git-commit-id-plugin.version>
     <maven-surefire-plugin.version>3.5.3</maven-surefire-plugin.version>