diff --git a/Gemfile.lock b/Gemfile.lock
index ca70b961..35172b08 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -225,7 +225,7 @@ GEM
     pry-rails (0.3.11)
       pry (>= 0.13.0)
     public_suffix (6.0.1)
-    puma (6.4.2)
+    puma (6.4.3)
       nio4r (~> 2.0)
     racc (1.8.1)
     rack (2.2.9)