diff --git a/web/backend/Gemfile.lock b/web/backend/Gemfile.lock
index 8815116..58186d9 100644
--- a/web/backend/Gemfile.lock
+++ b/web/backend/Gemfile.lock
@@ -147,7 +147,7 @@ GEM
       racc
     psych (5.1.2)
       stringio
-    puma (6.4.2)
+    puma (6.4.3)
       nio4r (~> 2.0)
     racc (1.8.0)
     rack (3.1.4)