diff --git a/Gemfile b/Gemfile
index 95821ff..a5a6a89 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ ruby "3.4.11"
 
 gem "rails", "~> 8.1.4"
 gem "pg", "~> 1.5"
-gem "puma", "~> 6.0"
+gem "puma", "~> 8.0"
 
 # Crypto — secp256k1 signature verification
 gem "eth", "~> 0.5"
diff --git a/Gemfile.lock b/Gemfile.lock
index facfacb..b126e94 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -174,7 +174,7 @@ GEM
       prettyprint
     prettyprint (0.2.0)
     prism (1.9.0)
-    puma (6.6.1)
+    puma (8.0.2)
       nio4r (~> 2.0)
     racc (1.8.1)
     rack (3.2.7)
@@ -280,7 +280,7 @@ DEPENDENCIES
   factory_bot_rails (~> 6.0)
   jbuilder (~> 2.7)
   pg (~> 1.5)
-  puma (~> 6.0)
+  puma (~> 8.0)
   rack-cors (~> 2.0)
   rails (~> 8.1.4)
   rspec-rails (~> 8.0)