diff --git a/hartl-rails/toy-app/Gemfile.lock b/hartl-rails/toy-app/Gemfile.lock
index 0646e7d6..1b204fa2 100644
--- a/hartl-rails/toy-app/Gemfile.lock
+++ b/hartl-rails/toy-app/Gemfile.lock
@@ -51,6 +51,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.4)
+    crass (1.0.5)
     debug_inspector (0.0.2)
     erubis (2.7.0)
     execjs (2.7.0)
@@ -82,7 +83,8 @@ GEM
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
-    loofah (2.0.3)
+    loofah (2.3.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.11)
     mail (2.6.4)
@@ -91,7 +93,7 @@ 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)
     minitest-reporters (1.1.9)
       ansi
@@ -101,8 +103,8 @@ GEM
     multi_json (1.12.1)
     nenv (0.3.0)
     nio4r (1.2.1)
-    nokogiri (1.7.0.1)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.10.5)
+      mini_portile2 (~> 2.4.0)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)