diff --git a/Gemfile b/Gemfile
index 0547e68..198775c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -58,7 +58,7 @@ gem 'parallel'
 # Use ActiveModel has_secure_password
 # gem 'bcrypt', '~> 3.1.7'
 
-gem 'puma', '~> 3.6.0'
+gem 'puma', '~> 3.12.4'
 # Use puma killer for puma
 gem 'puma_worker_killer', github: 'schneems/puma_worker_killer', ref: 'ddd5326'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 22f3c4c..630bf9a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -205,7 +205,7 @@ GEM
       byebug (~> 9.0)
       pry (~> 0.10)
     public_suffix (2.0.5)
-    puma (3.6.2)
+    puma (3.12.4)
     rack (2.0.3)
     rack-protection (2.0.0)
       rack
@@ -372,7 +372,7 @@ DEPENDENCIES
   pickle
   poltergeist
   pry-byebug
-  puma (~> 3.6.0)
+  puma (~> 3.12.4)
   puma_worker_killer!
   rails
   rails_12factor