diff --git a/Gemfile.lock b/Gemfile.lock
index e042797..08abda3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -67,15 +67,16 @@ GEM
     launchy (2.4.3)
       addressable (~> 2.3)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.1)
     multi_json (1.14.1)
     multi_test (0.1.2)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.9-x64-mingw32)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.5)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
+    nokogiri (1.11.5-x64-mingw32)
+      racc (~> 1.4)
     parallel (1.19.1)
     parser (2.5.3.0)
       ast (~> 2.4.0)
@@ -86,6 +87,7 @@ GEM
       websocket-driver (>= 0.2.0)
     powerpack (0.1.2)
     public_suffix (4.0.4)
+    racc (1.5.2)
     rack (2.2.2)
     rack-protection (2.0.8.1)
       rack