diff --git a/Gemfile.lock b/Gemfile.lock
index 76c4dcf..33d73c4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -166,7 +166,7 @@ GEM
     psych (5.2.2)
       date
       stringio
-    puma (6.5.0)
+    puma (6.6.0)
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.8.1)