diff --git a/Gemfile.lock b/Gemfile.lock
index cf7e020d..12cbd48a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -154,7 +154,7 @@ GEM
     orm_adapter (0.5.0)
     popper_js (1.14.5)
     public_suffix (4.0.1)
-    puma (3.12.2)
+    puma (3.12.4)
     rack (2.1.1)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)