diff --git a/Gemfile.lock b/Gemfile.lock
index 5f282be..c345269 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -150,7 +150,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (3.0.3)
-    puma (3.12.0)
+    puma (3.12.1)
     rack (2.0.6)
     rack-proxy (0.6.4)
       rack