diff --git a/Gemfile b/Gemfile
index 193d0c27e..cc6924b77 100644
--- a/Gemfile
+++ b/Gemfile
@@ -40,7 +40,7 @@ group :pam_authentication, optional: true do
   gem 'devise_pam_authenticatable2', '~> 9.2'
 end
 
-gem 'net-ldap', '~> 0.16'
+gem 'net-ldap', '~> 0.17'
 gem 'omniauth-cas', '~> 2.0'
 gem 'omniauth-saml', '~> 1.10'
 gem 'omniauth', '~> 1.9'
diff --git a/Gemfile.lock b/Gemfile.lock
index f67a03527..e03cb724c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -353,7 +353,7 @@ GEM
     msgpack (1.3.3)
     multi_json (1.15.0)
     multipart-post (2.1.1)
-    net-ldap (0.16.3)
+    net-ldap (0.17.0)
     net-scp (3.0.0)
       net-ssh (>= 2.6.5, < 7.0.0)
     net-ssh (6.1.0)
@@ -740,7 +740,7 @@ DEPENDENCIES
   memory_profiler
   microformats (~> 4.2)
   mime-types (~> 3.3.1)
-  net-ldap (~> 0.16)
+  net-ldap (~> 0.17)
   nilsimsa!
   nokogiri (~> 1.10)
   nsa (~> 0.2)