diff --git a/Gemfile.lock b/Gemfile.lock
index 5c4632c..70303f8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -109,16 +109,18 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.10.2)
     multi_json (1.12.1)
     net-http-persistent (2.9.4)
     netrc (0.11.0)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.10-x86-mingw32)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    nokogiri (1.13.9-x86-mingw32)
+      racc (~> 1.4)
     puma (3.8.2)
+    racc (1.6.0)
     rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)