diff --git a/Gemfile.lock b/Gemfile.lock
index 7060b6f..adc83bc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -100,16 +100,18 @@ GEM
       nokogiri (~> 1)
       rake
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
     msgpack (1.2.6)
     multi_json (1.13.1)
     nio4r (2.3.1)
-    nokogiri (1.10.1)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     popper_js (1.14.5)
     puma (4.3.12)
       nio4r (~> 2.0)
+    racc (1.6.0)
     rack (2.0.6)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)