diff --git a/volume/blog-backend/Gemfile.lock b/volume/blog-backend/Gemfile.lock
index 90a6282..6dddd18 100644
--- a/volume/blog-backend/Gemfile.lock
+++ b/volume/blog-backend/Gemfile.lock
@@ -110,12 +110,13 @@ GEM
     method_source (0.9.2)
     mimemagic (0.3.4)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.6.1)
     minitest (5.14.0)
     msgpack (1.3.3)
     nio4r (2.5.2)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     parallel (1.19.1)
     parser (2.7.0.4)
       ast (~> 2.4.0)
@@ -131,6 +132,7 @@ GEM
     puma (3.12.4)
     pundit (2.1.0)
       activesupport (>= 3.0.0)
+    racc (1.5.2)
     rack (2.2.2)
     rack-cors (1.1.1)
       rack (>= 2.0.0)