diff --git a/examples/rails4/Gemfile.lock b/examples/rails4/Gemfile.lock
index bfa6bd2..07f8bab 100644
--- a/examples/rails4/Gemfile.lock
+++ b/examples/rails4/Gemfile.lock
@@ -45,7 +45,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.5)
-    crass (1.0.4)
+    crass (1.0.5)
     erubis (2.7.0)
     execjs (2.7.0)
     globalid (0.4.2)
@@ -53,27 +53,26 @@ GEM
     hike (1.2.3)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    jbuilder (2.7.0)
+    jbuilder (2.9.1)
       activesupport (>= 4.2.0)
-      multi_json (>= 1.2)
-    jquery-rails (4.3.3)
+    jquery-rails (4.3.5)
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     json (1.8.6)
-    loofah (2.2.3)
+    loofah (2.3.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
-    mini_mime (1.0.1)
+    mini_mime (1.0.2)
     mini_portile2 (2.4.0)
-    minitest (5.11.3)
-    multi_json (1.13.1)
-    nokogiri (1.10.1)
+    minitest (5.13.0)
+    multi_json (1.14.1)
+    nokogiri (1.10.5)
       mini_portile2 (~> 2.4.0)
     rack (1.6.11)
-    rack-cors (1.0.2)
+    rack-cors (1.0.3)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.11.1)
@@ -93,14 +92,14 @@ GEM
       activesupport (>= 4.2.0, < 5.0)
       nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.4)
-      loofah (~> 2.2, >= 2.2.2)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
     railties (4.2.11.1)
       actionpack (= 4.2.11.1)
       activesupport (= 4.2.11.1)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (12.3.2)
+    rake (13.0.1)
     rdoc (4.3.0)
     sass (3.2.19)
     sass-rails (4.0.5)
@@ -111,8 +110,7 @@ GEM
     sdoc (0.4.2)
       json (~> 1.7, >= 1.7.7)
       rdoc (~> 4.0)
-    spring (2.0.2)
-      activesupport (>= 4.2)
+    spring (2.1.0)
     sprockets (2.12.5)
       hike (~> 1.2)
       multi_json (~> 1.0)
@@ -122,16 +120,16 @@ GEM
       actionpack (>= 3.0)
       activesupport (>= 3.0)
       sprockets (>= 2.8, < 4.0)
-    sqlite3 (1.3.13)
+    sqlite3 (1.4.1)
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (1.4.1)
-    turbolinks (5.1.1)
-      turbolinks-source (~> 5.1)
-    turbolinks-source (5.1.0)
+    turbolinks (5.2.1)
+      turbolinks-source (~> 5.2)
+    turbolinks-source (5.2.0)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
-    uglifier (4.1.17)
+    uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)
 
 PLATFORMS
@@ -151,4 +149,4 @@ DEPENDENCIES
   uglifier (>= 1.3.0)
 
 BUNDLED WITH
-   1.16.3
+   1.17.2