diff --git a/Gemfile.lock b/Gemfile.lock
index 7fcd188..adb95a4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -151,7 +151,7 @@ GEM
     pg (1.2.3)
     polyamorous (2.3.2)
       activerecord (>= 5.2.1)
-    puma (4.3.3)
+    puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.2.2)
     rack-cors (1.1.1)