diff --git a/Gemfile.lock b/Gemfile.lock
index 9689e73..bd8e9ae 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -117,7 +117,7 @@ GEM
       ast (~> 2.4.0)
     pg (1.1.4)
     public_suffix (3.1.0)
-    puma (3.12.1)
+    puma (3.12.6)
     rack (2.0.7)
     rack-proxy (0.6.4)
       rack