diff --git a/Gemfile.lock b/Gemfile.lock
index a58feb3..0cc7f27 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -114,7 +114,7 @@ GEM
     pry-rails (0.3.6)
       pry (>= 0.10.4)
     public_suffix (3.0.2)
-    puma (3.12.2)
+    puma (3.12.4)
     rack (2.0.8)
     rack-cors (1.0.5)
       rack (>= 1.6.0)