diff --git a/Gemfile.lock b/Gemfile.lock
index 69d835e4..f1d48df0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -170,7 +170,7 @@ GEM
       byebug (~> 11.0)
       pry (~> 0.10)
     public_suffix (4.0.1)
-    puma (4.3.3)
+    puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.0.8)
     rack-cache (1.9.0)