diff --git a/Gemfile.lock b/Gemfile.lock
index a1e23f0db..001ca4fab 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -312,7 +312,7 @@ GEM
     psych (5.1.2)
       stringio
     public_suffix (5.0.1)
-    puma (6.4.2)
+    puma (6.4.3)
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.8.0)