diff --git a/approvaltests-util/pom.xml b/approvaltests-util/pom.xml
index 1190c625..8687d72b 100644
--- a/approvaltests-util/pom.xml
+++ b/approvaltests-util/pom.xml
@@ -88,7 +88,7 @@
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
-            <version>3.20.0</version>
+            <version>3.21.0</version>
         </dependency>
         <dependency>
             <groupId>commons-logging</groupId>