diff --git a/Gemfile.lock b/Gemfile.lock
index 4aff64c6..fbf702c3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -354,7 +354,7 @@ GEM
     psych (5.1.2)
       stringio
     public_suffix (6.0.1)
-    puma (5.6.8)
+    puma (5.6.9)
       nio4r (~> 2.0)
     racc (1.8.1)
     rack (2.2.9)