diff --git a/programmers_preferences_backend/Gemfile.lock b/programmers_preferences_backend/Gemfile.lock
index d6ab7aa..692c8c6 100644
--- a/programmers_preferences_backend/Gemfile.lock
+++ b/programmers_preferences_backend/Gemfile.lock
@@ -84,7 +84,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
-    mimemagic (0.3.4)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.14.0)
@@ -95,7 +97,7 @@ GEM
     pg (1.2.3)
     puma (4.3.3)
       nio4r (~> 2.0)
-    rack (2.2.2)
+    rack (2.2.6.2)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
     rack-proxy (0.6.5)