diff --git a/Gemfile.lock b/Gemfile.lock
index 67f8ac7..c92d108 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -133,7 +133,7 @@ GEM
     os (1.0.0)
     pg (1.1.4)
     public_suffix (3.0.3)
-    puma (3.12.2)
+    puma (3.12.3)
     rack (2.0.6)
     rack-cors (1.0.5)
       rack (>= 1.6.0)