diff --git a/assembly-thin/pom.xml b/assembly-thin/pom.xml
index 5c084cce6..0d71280d9 100644
--- a/assembly-thin/pom.xml
+++ b/assembly-thin/pom.xml
@@ -64,7 +64,7 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>flatten-maven-plugin</artifactId>
-                <version>1.6.0</version>
+                <version>1.7.3</version>
                 <configuration>
                     <updatePomFile>true</updatePomFile>
                     <flattenMode>oss</flattenMode>
diff --git a/assembly-uber/pom.xml b/assembly-uber/pom.xml
index ce9c30486..2844750db 100644
--- a/assembly-uber/pom.xml
+++ b/assembly-uber/pom.xml
@@ -64,7 +64,7 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>flatten-maven-plugin</artifactId>
-                <version>1.6.0</version>
+                <version>1.7.3</version>
                 <configuration>
                     <updatePomFile>true</updatePomFile>
                     <flattenMode>oss</flattenMode>