diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index b3d39ae..afe1691 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -74,14 +74,16 @@ GEM
     method_source (0.9.2)
     mimemagic (0.3.3)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     msgpack (1.2.9)
     nio4r (2.3.1)
-    nokogiri (1.10.1)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pg (1.1.4)
     puma (3.12.1)
+    racc (1.6.0)
     rack (2.0.6)
     rack-cors (1.0.2)
     rack-test (1.1.0)