diff --git a/Gemfile b/Gemfile
index 5ea8fc4..01456d9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@ gem 'haml'
 source 'https://rails-assets.org' do
   gem 'rails-assets-angular', '1.4.5'
   gem 'rails-assets-angular-route', '1.4.5'
-  gem 'rails-assets-lazysizes', '4.1.4'
+  gem 'rails-assets-lazysizes', '4.1.7'
 end
 
 gem 'uglifier', '>= 1.3.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 47b9541..5193de5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -132,7 +132,7 @@ GEM
     rails-assets-angular (1.4.5)
     rails-assets-angular-route (1.4.5)
       rails-assets-angular (= 1.4.5)
-    rails-assets-lazysizes (4.1.4)
+    rails-assets-lazysizes (4.1.7)
     rails-deprecated_sanitizer (1.0.3)
       activesupport (>= 4.2.0.alpha)
     rails-dom-testing (1.0.9)
@@ -230,7 +230,7 @@ DEPENDENCIES
   rails (~> 4.2)
   rails-assets-angular (= 1.4.5)!
   rails-assets-angular-route (= 1.4.5)!
-  rails-assets-lazysizes (= 4.1.4)!
+  rails-assets-lazysizes (= 4.1.7)!
   rspec-rails
   rubocop
   simplecov