diff --git a/arduino/cosmos/Gemfile.lock b/arduino/cosmos/Gemfile.lock
index aa5fb4e..4bd6be7 100644
--- a/arduino/cosmos/Gemfile.lock
+++ b/arduino/cosmos/Gemfile.lock
@@ -29,7 +29,7 @@ GEM
     json (2.2.0)
     method_source (0.9.2)
     mini_portile2 (2.4.0)
-    nokogiri (1.10.3)
+    nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
     opengl-bindings (1.6.9)
     pry (0.12.2)