diff --git a/discussions/module04/todo_app/Gemfile.lock b/discussions/module04/todo_app/Gemfile.lock
index fb644cf..b0f8952 100644
--- a/discussions/module04/todo_app/Gemfile.lock
+++ b/discussions/module04/todo_app/Gemfile.lock
@@ -93,17 +93,21 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
-    mimemagic (0.3.5)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.2)
     minitest (5.14.1)
     msgpack (1.3.3)
     nio4r (2.5.2)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.10)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     public_suffix (4.0.5)
     puma (4.3.5)
       nio4r (~> 2.0)
+    racc (1.7.1)
     rack (2.2.2)
     rack-proxy (0.6.5)
       rack