diff --git a/dummy_app/Gemfile.lock b/dummy_app/Gemfile.lock
index d4e1b84..9b7242d 100644
--- a/dummy_app/Gemfile.lock
+++ b/dummy_app/Gemfile.lock
@@ -52,13 +52,13 @@ GEM
     builder (3.2.4)
     concurrent-ruby (1.1.6)
     crass (1.0.6)
-    diff-lcs (1.3)
+    diff-lcs (1.5.0)
     erubi (1.9.0)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
     i18n (1.8.2)
       concurrent-ruby (~> 1.0)
-    loofah (2.5.0)
+    loofah (2.19.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -68,12 +68,14 @@ GEM
     method_source (1.0.0)
     mimemagic (0.3.5)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
-    minitest (5.14.1)
-    nio4r (2.5.2)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
-    pg (1.2.0)
+    mini_portile2 (2.8.0)
+    minitest (5.16.3)
+    nio4r (2.5.8)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    pg (1.4.4)
+    racc (1.6.0)
     rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -93,7 +95,7 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.3.0)
+    rails-html-sanitizer (1.4.3)
       loofah (~> 2.3)
     railties (5.2.4.3)
       actionpack (= 5.2.4.3)
@@ -109,21 +111,21 @@ GEM
       rspec-mocks (~> 3.9.0)
     rspec-core (3.9.1)
       rspec-support (~> 3.9.1)
-    rspec-expectations (3.9.0)
+    rspec-expectations (3.9.4)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
     rspec-mocks (3.9.1)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
     rspec-support (3.9.2)
-    sprockets (4.0.0)
+    sprockets (4.1.1)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (3.2.1)
-      actionpack (>= 4.0)
-      activesupport (>= 4.0)
+    sprockets-rails (3.4.2)
+      actionpack (>= 5.2)
+      activesupport (>= 5.2)
       sprockets (>= 3.0.0)
-    thor (1.0.1)
+    thor (1.2.1)
     thread_safe (0.3.6)
     tzinfo (1.2.7)
       thread_safe (~> 0.1)