diff --git a/Gemfile.lock b/Gemfile.lock
index f3608a9..61a4867 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -104,7 +104,7 @@ GEM
       forwardable-extended (~> 2.6)
     progressbar (1.10.1)
     public_suffix (4.0.3)
-    puma (4.3.3)
+    puma (4.3.5)
       nio4r (~> 2.0)
     rack (1.6.12)
     rack-jekyll (0.5.0)