diff --git a/Gemfile.lock b/Gemfile.lock
index 81eab00..24ab0d8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -275,7 +275,7 @@ GEM
       mustermann (~> 1.0.0)
     mysql2 (0.5.2)
     naught (1.1.0)
-    nokogiri (1.10.9)
+    nokogiri (1.13.9)
       mini_portile2 (~> 2.4.0)
     oauth2 (1.4.1)
       faraday (>= 0.8, < 0.16.0)