diff --git a/Gemfile.lock b/Gemfile.lock
index b31af33..8dbe9ae 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -34,7 +34,7 @@ GEM
     parallel (1.19.1)
     parser (2.7.1.2)
       ast (~> 2.4.0)
-    puma (4.3.3)
+    puma (4.3.4)
       nio4r (~> 2.0)
     rack (2.2.2)
     rack-protection (2.0.8.1)