diff --git a/build.gradle b/build.gradle
index 6c79da4..b1a5bdf 100644
--- a/build.gradle
+++ b/build.gradle
@@ -109,7 +109,7 @@ dependencies {
     api 'net.i2p.crypto:eddsa:0.3.0'
 
     // LDAP connector
-    api 'org.apache.directory.api:api-all:1.0.3'
+    api 'org.apache.directory.api:api-all:2.1.6'
 
     // DNS lookups
     api 'dnsjava:dnsjava:3.5.3'