diff --git a/pom.xml b/pom.xml
index 739202e..aa328c4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -307,7 +307,7 @@
     <dependency>
       <groupId>com.unboundid</groupId>
       <artifactId>unboundid-ldapsdk</artifactId>
-      <version>2.3.5</version>
+      <version>4.0.5</version>
     </dependency>
 
     <dependency>