diff --git a/Gemfile.lock b/Gemfile.lock
index e2e1f9011..ffea63e66 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -220,7 +220,7 @@ GEM
       net-ssh (>= 2.6.5)
     net-ssh (2.9.2)
     netrc (0.11.0)
-    nokogiri (1.8.2)
+    nokogiri (1.8.4)
       mini_portile2 (~> 2.3.0)
     orm_adapter (0.5.0)
     parallel (1.12.1)