diff --git a/Gemfile b/Gemfile
index d2f2d43c8..02085f1f9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -116,7 +116,7 @@ source "https://rails-assets.org" do
   # jQuery plugins
 
   gem "rails-assets-autosize",                            "4.0.1"
-  gem "rails-assets-blueimp-gallery",                     "2.27.0"
+  gem "rails-assets-blueimp-gallery",                     "2.33.0"
   gem "rails-assets-jquery.are-you-sure",                 "1.9.0"
   gem "rails-assets-jquery-placeholder",                  "2.3.1"
   gem "rails-assets-jquery-textchange",                   "0.2.3"
diff --git a/Gemfile.lock b/Gemfile.lock
index 18f205e23..8b6181436 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -511,7 +511,7 @@ GEM
     rails-assets-autosize (4.0.1)
     rails-assets-backbone (1.3.3)
       rails-assets-underscore (>= 1.8.3)
-    rails-assets-blueimp-gallery (2.27.0)
+    rails-assets-blueimp-gallery (2.33.0)
     rails-assets-bootstrap (3.3.7)
       rails-assets-jquery (>= 1.9.1, < 4)
     rails-assets-bootstrap-markdown (2.10.0)
@@ -848,7 +848,7 @@ DEPENDENCIES
   rails (= 5.1.6)
   rails-assets-autosize (= 4.0.1)!
   rails-assets-backbone (= 1.3.3)!
-  rails-assets-blueimp-gallery (= 2.27.0)!
+  rails-assets-blueimp-gallery (= 2.33.0)!
   rails-assets-bootstrap-markdown (= 2.10.0)!
   rails-assets-corejs-typeahead (= 1.2.1)!
   rails-assets-diaspora_jsxc (= 0.1.5.develop.7)!