diff --git a/Gemfile b/Gemfile
index 3981076f1da..02a4f9018f7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -43,7 +43,7 @@ gem 'maxminddb'
 gem 'multiset'
 gem 'net-sftp'
 gem 'newrelic_rpm', '~> 8.0'
-gem 'puma'
+gem 'puma', '~> 5.6.7'
 gem 'pg'
 gem 'phonelib'
 gem 'premailer-rails', '>= 1.12.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index e1ef8890e86..a5314280bef 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -472,7 +472,7 @@ GEM
       pry (>= 0.10.4)
     psych (4.0.2)
     public_suffix (5.0.3)
-    puma (5.6.4)
+    puma (5.6.7)
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.7.1)
@@ -781,7 +781,7 @@ DEPENDENCIES
   pry-doc
   pry-rails
   psych
-  puma
+  puma (~> 5.6.7)
   rack (>= 2.2.3.1)
   rack-attack (>= 6.2.1)
   rack-cors (>= 1.0.5)