diff --git a/Gemfile.lock b/Gemfile.lock
index ff77c409..345f0ba4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -170,7 +170,7 @@ GEM
     prettier_print (1.2.1)
     psych (5.1.0)
       stringio
-    puma (6.3.1)
+    puma (6.4.0)
       nio4r (~> 2.0)
     racc (1.7.1)
     rack (3.0.8)