diff --git a/examples/todo-vuejs/Gemfile.lock b/examples/todo-vuejs/Gemfile.lock
index 664ca1b..cc7d7db 100644
--- a/examples/todo-vuejs/Gemfile.lock
+++ b/examples/todo-vuejs/Gemfile.lock
@@ -62,6 +62,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
+    crass (1.0.5)
     erubi (1.6.0)
     execjs (2.7.0)
     ffi (1.9.18)
@@ -80,7 +81,8 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
     lodash-rails (4.17.4)
       railties (>= 3.1)
-    loofah (2.0.3)
+    loofah (2.3.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.5)
       mime-types (>= 1.16, < 4)
@@ -88,12 +90,12 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.4.0)
     minitest (5.10.1)
     multi_json (1.12.1)
     nio4r (2.0.0)
-    nokogiri (1.7.1)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.10.5)
+      mini_portile2 (~> 2.4.0)
     pry (0.10.4)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)