diff --git a/examples/rails5_app/Gemfile.lock b/examples/rails5_app/Gemfile.lock
index 2364fd2..2df6e2c 100644
--- a/examples/rails5_app/Gemfile.lock
+++ b/examples/rails5_app/Gemfile.lock
@@ -43,7 +43,7 @@ GEM
     builder (3.2.3)
     byebug (9.0.6)
     concurrent-ruby (1.1.5)
-    crass (1.0.5)
+    crass (1.0.6)
     debug_inspector (0.0.2)
     devise (4.7.1)
       bcrypt (~> 3.0)
@@ -72,7 +72,7 @@ GEM
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
-    loofah (2.3.1)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.4)
@@ -81,14 +81,16 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.12.2)
     multi_json (1.12.1)
     nio4r (2.0.0)
-    nokogiri (1.10.5)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.10)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     puma (3.7.1)
+    racc (1.6.1)
     rack (2.0.7)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -107,8 +109,8 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.3.0)
-      loofah (~> 2.3)
+    rails-html-sanitizer (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
     railties (5.0.2)
       actionpack (= 5.0.2)
       activesupport (= 5.0.2)