diff --git a/Gemfile.lock b/Gemfile.lock
index d766a2d1..3ae8572d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -153,10 +153,10 @@ GEM
     multi_json (1.13.1)
     multi_test (0.1.2)
     nio4r (2.5.8)
-    nokogiri (1.13.6)
+    nokogiri (1.13.9)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    nokogiri (1.13.6-x64-mingw32)
+    nokogiri (1.13.9-x64-mingw32)
       racc (~> 1.4)
     pg (1.1.4)
     pg (1.1.4-x64-mingw32)