diff --git a/Gemfile.lock b/Gemfile.lock
index 8fe3883..74b96ec 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -138,7 +138,7 @@ GEM
     pg (1.2.2)
     popper_js (1.14.5)
     public_suffix (4.0.1)
-    puma (3.12.2)
+    puma (3.12.3)
     rack (2.0.7)
     rack-cors (1.1.1)
       rack (>= 2.0.0)