diff --git a/Gemfile b/Gemfile
index 909afb098..f69a62f56 100644
--- a/Gemfile
+++ b/Gemfile
@@ -53,7 +53,7 @@ gem "rack-cors", "1.0.1", require: "rack/cors"
 
 # CSS
 
-gem "autoprefixer-rails",     "7.1.2.3"
+gem "autoprefixer-rails",     "7.1.2.4"
 gem "bootstrap-sass",         "3.3.7"
 gem "bootstrap-switch-rails", "3.3.3"
 gem "compass-rails",          "3.0.2"
diff --git a/Gemfile.lock b/Gemfile.lock
index 23303759c..6401b448f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -60,7 +60,7 @@ GEM
       unf
     ast (2.3.0)
     attr_required (1.0.1)
-    autoprefixer-rails (7.1.2.3)
+    autoprefixer-rails (7.1.2.4)
       execjs
     bcrypt (3.1.11)
     bindata (2.4.0)
@@ -768,7 +768,7 @@ DEPENDENCIES
   acts_as_api (= 1.0.1)
   addressable (= 2.5.1)
   asset_sync (= 2.2.0)
-  autoprefixer-rails (= 7.1.2.3)
+  autoprefixer-rails (= 7.1.2.4)
   bootstrap-sass (= 3.3.7)
   bootstrap-switch-rails (= 3.3.3)
   capybara (= 2.14.4)