diff --git a/Gemfile.lock b/Gemfile.lock
index 481205696..a495d8d93 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -266,6 +266,7 @@ GEM
     ngannotate-rails (1.2.2)
       execjs
       rails (>= 3.1)
+    nio4r (2.5.4)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     oauth2 (1.4.0)
@@ -302,7 +303,8 @@ GEM
     polyamorous (1.3.1)
       activerecord (>= 3.0)
     public_suffix (2.0.5)
-    puma (3.9.1)
+    puma (5.0.2)
+      nio4r (~> 2.0)
     pundit (1.1.0)
       activesupport (>= 3.0.0)
     pygments.rb (1.1.2)