diff --git a/pom.xml b/pom.xml
index 2f69d97..6f3e756 100644
--- a/pom.xml
+++ b/pom.xml
@@ -38,7 +38,7 @@
 		<dependency>
 			<groupId>commons-cli</groupId>
 			<artifactId>commons-cli</artifactId>
-			<version>1.7.0</version>
+			<version>1.9.0</version>
 		</dependency>
 		<!-- Log4j. -->
 		<dependency>