diff --git a/pom.xml b/pom.xml
index 85dba9e..4e08437 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,7 +17,7 @@
     <properties>
       <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
       <commons-lang.version>3.3.2</commons-lang.version>
-      <config.version>4.8</config.version>
+      <config.version>4.9</config.version>
       <jackson.version>[2.8,2.9)</jackson.version>
       <junit.version>4.13.1</junit.version>
       <logback.version>1.1.2</logback.version>