diff --git a/Gemfile.lock b/Gemfile.lock
index 2aafd46..049003d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -105,7 +105,7 @@ GEM
     minitest (5.11.3)
     msgpack (1.3.1)
     nio4r (2.5.1)
-    nokogiri (1.10.5)
+    nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     parallel (1.17.0)
     parser (2.6.4.1)