diff --git a/Gemfile.lock b/Gemfile.lock
index a174a764b..08ecc641d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -271,7 +271,7 @@ GEM
     polyamorous (2.3.2)
       activerecord (>= 5.2.1)
     public_suffix (4.0.5)
-    puma (4.3.3)
+    puma (4.3.5)
       nio4r (~> 2.0)
     raabro (1.3.1)
     rack (2.2.2)