diff --git a/spring-boot-1.5.x/pom.xml b/spring-boot-1.5.x/pom.xml
index c234e9a..29c0cf6 100644
--- a/spring-boot-1.5.x/pom.xml
+++ b/spring-boot-1.5.x/pom.xml
@@ -33,7 +33,7 @@
         <java.version>1.8</java.version>
 
         <spring-security-oauth2.version>2.3.6.RELEASE</spring-security-oauth2.version>
-        <commons-lang3.version>3.8.1</commons-lang3.version>
+        <commons-lang3.version>3.18.0</commons-lang3.version>
     </properties>
 
     <dependencies>