diff --git a/extend-rails/Gemfile.lock b/extend-rails/Gemfile.lock
index 87881c7..6cc980d 100644
--- a/extend-rails/Gemfile.lock
+++ b/extend-rails/Gemfile.lock
@@ -117,12 +117,13 @@ GEM
       mini_mime (>= 0.1.1)
     method_source (0.9.0)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
     multi_json (1.13.1)
     nio4r (2.3.1)
-    nokogiri (1.10.1)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     os (1.0.0)
     popper_js (1.14.3)
     pry (0.12.2)
@@ -135,6 +136,7 @@ GEM
       pry (>= 0.10.4)
     public_suffix (3.0.3)
     puma (3.12.0)
+    racc (1.5.2)
     rack (2.0.6)
     rack-proxy (0.6.5)
       rack