diff --git a/Gemfile.lock b/Gemfile.lock
index bc1e3048..20085bd5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1300,7 +1300,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (4.0.6)
-    puma (4.3.5)
+    puma (4.3.6)
       nio4r (~> 2.0)
     puma-heroku (1.1.0)
       puma (>= 3.0, < 5.0)