diff --git a/example-rails-app/Gemfile.lock b/example-rails-app/Gemfile.lock
index 4094346..86e2562 100644
--- a/example-rails-app/Gemfile.lock
+++ b/example-rails-app/Gemfile.lock
@@ -39,14 +39,14 @@ GEM
     arel (6.0.4)
     builder (3.2.4)
     concurrent-ruby (1.1.5)
-    crass (1.0.5)
+    crass (1.0.6)
     erubis (2.7.0)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
     json (1.8.3)
-    loofah (2.4.0)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -57,7 +57,7 @@ GEM
     nokogiri (1.13.9)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    racc (1.6.0)
+    racc (1.6.1)
     rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)