diff --git a/Gemfile.lock b/Gemfile.lock
index 3eac64017..07b65bd89 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -356,7 +356,7 @@ GEM
     popper_js (1.14.5)
     procto (0.0.3)
     public_suffix (4.0.1)
-    puma (4.3.0)
+    puma (4.3.1)
       nio4r (~> 2.0)
     query_diet (0.6.2)
     rack (2.0.7)