diff --git a/Gemfile.lock b/Gemfile.lock
index e9839b0..f1d3ad9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -241,7 +241,7 @@ GEM
     pry-rails (0.3.9)
       pry (>= 0.10.4)
     public_suffix (5.0.3)
-    puma (6.3.1)
+    puma (6.4.0)
       nio4r (~> 2.0)
     racc (1.6.2)
     rack (2.2.8)