diff --git a/Gemfile.lock b/Gemfile.lock
index 3fabb3899..3f8a40b3e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -300,7 +300,7 @@ GEM
     pry-rails (0.3.11)
       pry (>= 0.13.0)
     public_suffix (6.0.1)
-    puma (6.5.0)
+    puma (6.6.0)
       nio4r (~> 2.0)
     racc (1.8.1)
     rack (2.2.10)