diff --git a/Gemfile.lock b/Gemfile.lock
index c42dc8d..f98995c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -90,7 +90,7 @@ GEM
     nokogiri (1.10.2)
       mini_portile2 (~> 2.4.0)
     pg (1.1.4)
-    puma (3.12.1)
+    puma (3.12.6)
     rack (2.0.6)
     rack-protection (2.0.5)
       rack