diff --git a/pom.xml b/pom.xml
index c99feae..9b0df68 100644
--- a/pom.xml
+++ b/pom.xml
@@ -63,7 +63,7 @@
         <protobuf-maven-plugin.version>0.6.1</protobuf-maven-plugin.version>
 
         <!-- plugin versions -->
-        <flatten-maven-plugin.version>1.6.0</flatten-maven-plugin.version>
+        <flatten-maven-plugin.version>1.7.0</flatten-maven-plugin.version>
         <maven-surefire-plugin.version>3.5.2</maven-surefire-plugin.version>
         <maven-failsafe-plugin.version>3.5.2</maven-failsafe-plugin.version>
         <maven-source-plugin.version>3.3.1</maven-source-plugin.version>