diff --git a/Gemfile.lock b/Gemfile.lock
index e99d5f7cba..239f560cc6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -450,7 +450,9 @@ GEM
     net-imap (0.5.9)
       date
       net-protocol
-    net-ldap (0.19.0)
+    net-ldap (0.20.0)
+      base64
+      ostruct
     net-pop (0.1.2)
       net-protocol
     net-protocol (0.2.2)