diff --git a/pom.xml b/pom.xml
index 1743bef..9329acf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,7 +8,7 @@
   <description><![CDATA[This project contains Java objects and utilities  auto-generated by <a href="https://github.com/common-workflow-language/schema_salad">Schema Salad</a> for parsing documents corresponding to the https://w3id.org/cwl/cwl# schema.]]></description>
   <version>1.2.0-SNAPSHOT</version>
   <properties>
-    <commonslang.version>3.17.0</commonslang.version>
+    <commonslang.version>3.18.0</commonslang.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
   </properties>