diff --git a/Gemfile.lock b/Gemfile.lock
index 859b51a..58c1bd2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -74,11 +74,12 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.0331)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     multi_json (1.13.1)
     nio4r (2.5.2)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     paho-mqtt (1.0.12)
     parallel (1.17.0)
     parser (2.6.2.1)
@@ -95,6 +96,7 @@ GEM
     puma (4.3.5)
       nio4r (~> 2.0)
     r18n-core (3.2.0)
+    racc (1.6.0)
     rack (2.2.3)
     rack-contrib (2.1.0)
       rack (~> 2.0)