diff --git a/Gemfile b/Gemfile
index 698ebc6c3..0cf06bd4f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -84,7 +84,7 @@ gem "entypo-rails", "2.2.3"
 # JavaScript
 
 gem "backbone-on-rails", "1.2.0.0"
-gem "handlebars_assets", "0.20.2"
+gem "handlebars_assets", "0.21.0"
 gem "jquery-rails",      "4.0.5"
 gem "jquery-ui-rails",   "5.0.5"
 gem "js_image_paths",    "0.0.2"
diff --git a/Gemfile.lock b/Gemfile.lock
index 25ac18dfe..ee529d102 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -350,7 +350,7 @@ GEM
       rubocop (~> 0.20)
     haml (4.0.7)
       tilt
-    handlebars_assets (0.20.2)
+    handlebars_assets (0.21.0)
       execjs (~> 2.0)
       multi_json (~> 1.0)
       sprockets (>= 2.0.0, < 4.0)
@@ -792,7 +792,7 @@ DEPENDENCIES
   guard-rspec (= 4.6.4)
   guard-rubocop (= 1.2.0)
   haml (= 4.0.7)
-  handlebars_assets (= 0.20.2)
+  handlebars_assets (= 0.21.0)
   http_accept_language (= 2.0.5)
   i18n-inflector-rails (= 1.0.7)
   jasmine (= 2.3.1)