diff --git a/Gemfile.lock b/Gemfile.lock
index 9e3bc3bc17..8c38ac752b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -339,7 +339,7 @@ GEM
     psych (5.1.2)
       stringio
     public_suffix (5.0.5)
-    puma (6.4.2)
+    puma (6.4.3)
       nio4r (~> 2.0)
     puma_worker_killer (0.3.1)
       get_process_mem (~> 0.2)