diff --git a/Gemfile.lock b/Gemfile.lock
index 7440e5e..bb712fc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -171,7 +171,7 @@ GEM
     pry-rails (0.3.2)
       pry (>= 0.9.10)
     public_suffix (3.0.3)
-    puma (3.12.0)
+    puma (3.12.4)
     rack (2.0.5)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)