diff --git a/Gemfile.lock b/Gemfile.lock
index 18dbcef3b..79d648afd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -478,7 +478,7 @@ GEM
       pry (>= 0.10.4)
     psych (3.3.4)
     public_suffix (5.0.1)
-    puma (6.3.0)
+    puma (6.3.1)
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.7.1)