diff --git a/Gemfile.lock b/Gemfile.lock
index 15f6066..ec67a57 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -96,19 +96,21 @@ GEM
     method_source (0.9.2)
     mimemagic (0.3.3)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
     msgpack (1.3.0)
     msgpack (1.3.0-x64-mingw32)
     mysql2 (0.5.2)
     mysql2 (0.5.2-x64-mingw32)
     nio4r (2.4.0)
-    nokogiri (1.10.4)
-      mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.4-x64-mingw32)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
+    nokogiri (1.12.5-x64-mingw32)
+      racc (~> 1.4)
     public_suffix (3.1.1)
     puma (3.12.1)
+    racc (1.5.2)
     rack (2.0.7)
     rack-cors (1.0.3)
     rack-test (1.1.0)