diff --git a/Gemfile.lock b/Gemfile.lock
index b91e0ef..2380f2d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -129,7 +129,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (4.0.3)
-    puma (3.12.2)
+    puma (3.12.4)
     rack (2.2.2)
     rack-cors (1.1.1)
       rack (>= 2.0.0)