diff --git a/Gemfile b/Gemfile
index 0fc58a849..1f7925f31 100644
--- a/Gemfile
+++ b/Gemfile
@@ -89,7 +89,7 @@ gem 'rails-assets-punycode', '1.3.1'
 gem 'rails-assets-jquery-idletimer',   '1.0.1'
 gem 'rails-assets-jquery-placeholder', '2.0.8'
 gem 'rails-assets-jquery-textchange',  '0.2.3'
-gem 'rails-assets-perfect-scrollbar',  '0.4.11'
+gem 'rails-assets-perfect-scrollbar',  '0.5.2'
 
 # Localization
 
diff --git a/Gemfile.lock b/Gemfile.lock
index defc16119..f41b1d3aa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -374,7 +374,7 @@ GEM
     rails-assets-jquery-placeholder (2.0.8)
     rails-assets-jquery-textchange (0.2.3)
       rails-assets-jquery
-    rails-assets-perfect-scrollbar (0.4.11)
+    rails-assets-perfect-scrollbar (0.5.2)
       rails-assets-jquery (>= 1.10)
     rails-assets-punycode (1.3.1)
     rails-i18n (4.0.3)
@@ -596,7 +596,7 @@ DEPENDENCIES
   rails-assets-jquery-idletimer (= 1.0.1)
   rails-assets-jquery-placeholder (= 2.0.8)
   rails-assets-jquery-textchange (= 0.2.3)
-  rails-assets-perfect-scrollbar (= 0.4.11)
+  rails-assets-perfect-scrollbar (= 0.5.2)
   rails-assets-punycode (= 1.3.1)
   rails-i18n (= 4.0.3)
   rails-timeago (= 2.11.0)