diff --git a/webapp/ruby/Gemfile.lock b/webapp/ruby/Gemfile.lock
index 624c36ac..b5aca503 100644
--- a/webapp/ruby/Gemfile.lock
+++ b/webapp/ruby/Gemfile.lock
@@ -12,7 +12,7 @@ GEM
     mysql2-cs-bind (0.1.1)
       mysql2
     nio4r (2.7.4)
-    puma (6.5.0)
+    puma (6.6.0)
       nio4r (~> 2.0)
     rack (3.1.8)
     rack-protection (4.1.1)