diff --git a/Gemfile.lock b/Gemfile.lock
index c66dfa4..a9b19bf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -112,7 +112,7 @@ GEM
       ast (~> 2.4.0)
     pg (1.1.4)
     public_suffix (4.0.1)
-    puma (3.12.2)
+    puma (3.12.3)
     rack (2.0.8)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)