diff --git a/Gemfile.lock b/Gemfile.lock
index 4f1e95c..d70ad42 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -173,7 +173,7 @@ GEM
     psych (5.1.0)
       stringio
     public_suffix (5.0.3)
-    puma (6.3.1)
+    puma (6.4.0)
       nio4r (~> 2.0)
     racc (1.7.1)
     rack (2.2.8)