diff --git a/Gemfile b/Gemfile
index a24fd281c..6a104aaad 100644
--- a/Gemfile
+++ b/Gemfile
@@ -39,7 +39,7 @@ gem 'p3p', '~> 2.0'
 gem 'panoptes-client'
 gem 'pg', '~> 1.4'
 gem 'pg_search'
-gem 'puma', '~> 6.3.1'
+gem 'puma', '~> 6.4.2'
 gem 'pundit', '~> 2.3.0'
 gem 'rack-cors', '~> 1.0', require: 'rack/cors'
 if next?
diff --git a/Gemfile.lock b/Gemfile.lock
index 93afbb0d7..028b49297 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -298,7 +298,7 @@ GEM
       net-protocol
     netrc (0.11.0)
     newrelic_rpm (9.3.1)
-    nio4r (2.5.9)
+    nio4r (2.7.0)
     nokogiri (1.15.3)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
@@ -342,7 +342,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (4.0.7)
-    puma (6.3.1)
+    puma (6.4.2)
       nio4r (~> 2.0)
     pundit (2.3.0)
       activesupport (>= 3.0.0)
@@ -565,7 +565,7 @@ DEPENDENCIES
   pg (~> 1.4)
   pg_search
   pry
-  puma (~> 6.3.1)
+  puma (~> 6.4.2)
   pundit (~> 2.3.0)
   rack-cors (~> 1.0)
   rails (~> 6.1)