diff --git a/Gemfile b/Gemfile
index 9d4f69dae..3e8e64388 100644
--- a/Gemfile
+++ b/Gemfile
@@ -36,7 +36,7 @@ group :pam_authentication, optional: true do
   gem 'devise_pam_authenticatable2', '~> 9.2'
 end
 
-gem 'net-ldap', '~> 0.17'
+gem 'net-ldap', '~> 0.18'
 gem 'omniauth-cas', '~> 2.0'
 gem 'omniauth-saml', '~> 1.10'
 gem 'omniauth_openid_connect', '~> 0.6.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index df340f252..db15509ed 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -426,7 +426,7 @@ GEM
     net-imap (0.3.4)
       date
       net-protocol
-    net-ldap (0.17.1)
+    net-ldap (0.18.0)
     net-pop (0.1.2)
       net-protocol
     net-protocol (0.2.1)
@@ -826,7 +826,7 @@ DEPENDENCIES
   memory_profiler
   mime-types (~> 3.4.1)
   net-http (~> 0.3.2)
-  net-ldap (~> 0.17)
+  net-ldap (~> 0.18)
   nokogiri (~> 1.14)
   nsa (~> 0.2)
   oj (~> 3.14)