diff --git a/section_1/MyApp/Gemfile.lock b/section_1/MyApp/Gemfile.lock
index 89716dd..6d0e323 100644
--- a/section_1/MyApp/Gemfile.lock
+++ b/section_1/MyApp/Gemfile.lock
@@ -79,7 +79,7 @@ GEM
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.5)
     connection_pool (2.2.2)
-    crass (1.0.4)
+    crass (1.0.6)
     dotenv (0.7.0)
     equatable (0.6.1)
     erubi (1.8.0)
@@ -138,7 +138,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.3)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -148,7 +148,7 @@ GEM
     method_source (0.9.2)
     mimemagic (0.3.3)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.6.1)
     mini_racer (0.2.4)
       libv8 (>= 6.3)
     minitest (5.11.3)
@@ -157,8 +157,9 @@ GEM
       activesupport
     necromancer (0.5.0)
     nio4r (2.5.1)
-    nokogiri (1.10.4)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     opal (0.11.4)
       ast (>= 2.3.0)
       hike (~> 1.2)
@@ -191,6 +192,7 @@ GEM
       tty-color (~> 0.5)
     public_suffix (4.0.1)
     puma (3.12.1)
+    racc (1.6.1)
     rack (2.0.7)
     rack-proxy (0.6.5)
       rack
@@ -212,8 +214,8 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.2.0)
-      loofah (~> 2.2, >= 2.2.2)
+    rails-html-sanitizer (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
     rails-hyperstack (1.0.alpha1.5)
       hyper-model (= 1.0.alpha1.5)
       hyper-router (= 1.0.alpha1.5)