diff --git a/Gemfile.lock b/Gemfile.lock
index 72c90f8..287fc89 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -185,7 +185,7 @@ GEM
     net-http-persistent (3.0.0)
       connection_pool (~> 2.2)
     nio4r (2.3.1)
-    nokogiri (1.10.1)
+    nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     notiffany (0.1.1)
       nenv (~> 0.1)