diff --git a/Gemfile.lock b/Gemfile.lock
index 9372b5a..6229832 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -65,7 +65,7 @@ GEM
       ast (~> 2.4.1)
       racc
     public_suffix (6.0.1)
-    puma (6.4.2)
+    puma (6.4.3)
       nio4r (~> 2.0)
     racc (1.8.1)
     rack (3.1.7)