diff --git a/Gemfile.lock b/Gemfile.lock
index 4fa12f7fce..ac984fa05e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -384,7 +384,7 @@ GEM
     prawn-table (0.2.2)
       prawn (>= 1.3.0, < 3.0.0)
     public_suffix (6.0.0)
-    puma (6.4.2)
+    puma (6.4.3)
       nio4r (~> 2.0)
     racc (1.8.1)
     rack (2.2.9)