diff --git a/Gemfile b/Gemfile
index fef3cff..cddad37 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem "puma", "~> 6.0"
 gem "bootsnap", ">= 1.4.4", require: false
 
 # Vulnerable dependencies for testing
-gem "nokogiri", "~> 1.14.0" # Vulnerable version with known CVEs
+gem "nokogiri", "~> 1.19.0" # Vulnerable version with known CVEs
 
 group :development, :test do
   gem "byebug", platforms: [:mri, :mingw, :x64_mingw]
diff --git a/Gemfile.lock b/Gemfile.lock
index 32da337..bd9ac94 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -118,7 +118,6 @@ GEM
       net-smtp
     marcel (1.1.0)
     mini_mime (1.1.5)
-    mini_portile2 (2.8.9)
     minitest (5.25.5)
     msgpack (1.8.0)
     mutex_m (0.3.0)
@@ -132,10 +131,9 @@ GEM
     net-smtp (0.5.1)
       net-protocol
     nio4r (2.7.4)
-    nokogiri (1.14.5)
-      mini_portile2 (~> 2.8.0)
+    nokogiri (1.19.0-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.10-x86_64-linux-gnu)
+    nokogiri (1.19.0-x86_64-linux-gnu)
       racc (~> 1.4)
     pp (0.6.2)
       prettyprint
@@ -220,7 +218,7 @@ DEPENDENCIES
   bootsnap (>= 1.4.4)
   byebug
   listen (~> 3.3)
-  nokogiri (~> 1.14.0)
+  nokogiri (~> 1.19.0)
   puma (~> 6.0)
   rails (~> 7.1.0)
   spring