diff --git a/Gemfile.lock b/Gemfile.lock
index ba01ef58..0653e977 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -429,7 +429,7 @@ GEM
     prawn-table (0.2.2)
       prawn (>= 1.3.0, < 3.0.0)
     public_suffix (4.0.6)
-    puma (4.3.8)
+    puma (4.3.11)
       nio4r (~> 2.0)
     racc (1.6.0)
     rack (2.2.3)