diff --git a/Gemfile.lock b/Gemfile.lock
index 5757d16..752d797 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -171,7 +171,7 @@ GEM
       pry (>= 0.10.4)
     psych (5.1.1.1)
       stringio
-    puma (6.4.1)
+    puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.7.3)
     rack (2.2.8)