diff --git a/Gemfile.lock b/Gemfile.lock
index cc48e80..72ffb73 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -85,7 +85,7 @@ GEM
       omnicat (~> 0.3.0)
     power_assert (1.1.6)
     public_suffix (4.0.3)
-    puma (4.3.3)
+    puma (4.3.5)
       nio4r (~> 2.0)
     raabro (1.1.6)
     rack (2.2.2)