diff --git a/backend-server/Gemfile b/backend-server/Gemfile
index ef4bfed..a2d0ead 100644
--- a/backend-server/Gemfile
+++ b/backend-server/Gemfile
@@ -5,7 +5,7 @@ ruby '~> 3.0'
 # Web Framework
 gem 'sinatra', '~> 4.0'
 gem 'sinatra-contrib', '~> 4.0'  # For extensions
-gem 'puma', '~> 7.2'
+gem 'puma', '~> 8.0'
 gem 'rackup', '~> 2.3'
 gem 'rack', '>= 3.2.6'
 gem 'rack-session', '>= 2.1.2'
diff --git a/backend-server/Gemfile.lock b/backend-server/Gemfile.lock
index bfef740..ca921f2 100644
--- a/backend-server/Gemfile.lock
+++ b/backend-server/Gemfile.lock
@@ -30,7 +30,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
       reline (>= 0.6.0)
-    puma (7.2.0)
+    puma (8.0.1)
       nio4r (~> 2.0)
     rack (3.2.6)
     rack-protection (4.2.1)
@@ -91,7 +91,7 @@ DEPENDENCIES
   mocha (~> 2.0)
   pg (~> 1.5)
   pry (~> 0.14)
-  puma (~> 7.2)
+  puma (~> 8.0)
   rack (>= 3.2.6)
   rack-session (>= 2.1.2)
   rack-test (~> 2.1)
@@ -105,6 +105,7 @@ DEPENDENCIES
 CHECKSUMS
   base64 (0.3.0) sha256=27337aeabad6ffae05c265c450490628ef3ebd4b67be58257393227588f5a97b
   bcrypt (3.1.22) sha256=1f0072e88c2d705d94aff7f2c5cb02eb3f1ec4b8368671e19112527489f29032
+  bundler (4.0.11) sha256=5bcec0fb78302e48d02ee46f10ee6e6942be647ba5b44a6d1ddfda9a240ce785
   coderay (1.1.3) sha256=dc530018a4684512f8f38143cd2a096c9f02a1fc2459edcfe534787a7fc77d4b
   connection_pool (3.0.2) sha256=33fff5ba71a12d2aa26cb72b1db8bba2a1a01823559fb01d29eb74c286e62e0a
   csv (3.3.5) sha256=6e5134ac3383ef728b7f02725d9872934f523cb40b961479f69cf3afa6c8e73f
@@ -127,7 +128,7 @@ CHECKSUMS
   pg (1.6.3-x86_64-linux) sha256=5d9e188c8f7a0295d162b7b88a768d8452a899977d44f3274d1946d67920ae8d
   prism (1.9.0) sha256=7b530c6a9f92c24300014919c9dcbc055bf4cdf51ec30aed099b06cd6674ef85
   pry (0.16.0) sha256=d76c69065698ed1f85e717bd33d7942c38a50868f6b0673c636192b3d1b6054e
-  puma (7.2.0) sha256=bf8ef4ab514a4e6d4554cb4326b2004eba5036ae05cf765cfe51aba9706a72a8
+  puma (8.0.1) sha256=7b94e50c07655718c1fb8ae41a11fc06c7d61293208b3aa608ff71a46d3ad37c
   rack (3.2.6) sha256=5ed78e1f73b2e25679bec7d45ee2d4483cc4146eb1be0264fc4d94cb5ef212c2
   rack-protection (4.2.1) sha256=cf6e2842df8c55f5e4d1a4be015e603e19e9bc3a7178bae58949ccbb58558bac
   rack-session (2.1.2) sha256=595434f8c0c3473ae7d7ac56ecda6cc6dfd9d37c0b2b5255330aa1576967ffe8