diff --git a/Gemfile.lock b/Gemfile.lock
index 3aa07cd..b7dde38 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -126,7 +126,7 @@ GEM
     mustermann-grape (1.0.1)
       mustermann (>= 1.0.0)
     nio4r (2.5.2)
-    nokogiri (1.10.5)
+    nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     pg (1.1.4)
     puma (3.12.1)