diff --git a/Gemfile.lock b/Gemfile.lock
index 51faf1ae..a949b886 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -341,7 +341,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (4.0.4)
-    puma (4.3.3)
+    puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.0.9)
     rack-pjax (1.1.0)