diff --git a/HISTORY b/HISTORY
index 1ffc45a..cd01ca6 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,3 +1,6 @@
+=== 4.5.1 2025-04-07
+- Fix Verification URLs
+
 === 4.5.0 2024-05-16
 - Support for warnings in Events API
 
diff --git a/lib/sift.rb b/lib/sift.rb
index a9c656f..adc93c8 100644
--- a/lib/sift.rb
+++ b/lib/sift.rb
@@ -10,17 +10,17 @@ def self.rest_api_path(version=API_VERSION)
   end
 
   # Returns the path for the specified API version
-  def self.verification_api_send_path(version=API_VERSION)
+  def self.verification_api_send_path(version=VERIFICATION_API_VERSION)
     "/v#{version}/verification/send"
   end
 
   # Returns the path for the specified API version
-  def self.verification_api_resend_path(version=API_VERSION)
+  def self.verification_api_resend_path(version=VERIFICATION_API_VERSION)
     "/v#{version}/verification/resend"
   end
 
   # Returns the path for the specified API version
-  def self.verification_api_check_path(version=API_VERSION)
+  def self.verification_api_check_path(version=VERIFICATION_API_VERSION)
     "/v#{version}/verification/check"
   end
 
diff --git a/lib/sift/client.rb b/lib/sift/client.rb
index f7a5837..b510ae3 100644
--- a/lib/sift/client.rb
+++ b/lib/sift/client.rb
@@ -139,6 +139,7 @@ def initialize(opts = {})
       @api_key = opts[:api_key] || Sift.api_key
       @account_id = opts[:account_id] || Sift.account_id
       @version = opts[:version] || API_VERSION
+      @verification_version = opts[:verification_version] || VERIFICATION_API_VERSION
       @timeout = opts[:timeout] || 2  # 2-second timeout by default
       @path = opts[:path] || Sift.rest_api_path(@version)
 
@@ -201,7 +202,7 @@ def user_agent
     #
     #   :path::
     #     Overrides the URI path for this API call.
-    # 
+    #
     #   :include_score_percentiles::
     #     include_score_percentiles(optional) : Whether to add new parameter in the query parameter.
     #
@@ -286,7 +287,7 @@ def track(event, properties = {}, opts = {})
     #
     #   :version::
     #     Overrides the version of the Events API to call.
-    # 
+    #
     #   :include_score_percentiles::
     #     include_score_percentiles(optional) : Whether to add new parameter in the query parameter.
     #
@@ -350,7 +351,7 @@ def score(user_id, opts = {})
     #
     #   :timeout::
     #     Overrides the timeout (in seconds) for this call.
-    # 
+    #
     #   :include_score_percentiles::
     #     include_score_percentiles(optional) : Whether to add new parameter in the query parameter.
     #
@@ -755,7 +756,7 @@ def build_default_headers_post(api_key)
 
     def verification_send(properties = {}, opts = {})
       api_key = opts[:api_key] || @api_key
-      version = opts[:version] || @version
+      version = opts[:verification_version] || @verification_version
       timeout = opts[:timeout] || @timeout
 
       raise("properties cannot be empty") if properties.empty?
@@ -767,14 +768,13 @@ def verification_send(properties = {}, opts = {})
         :headers => build_default_headers_post(api_key)
       }
       options.merge!(:timeout => timeout) unless timeout.nil?
-
       response = self.class.post(Sift.verification_api_send_path(@version), options)
       Response.new(response.body, response.code, response.response)
     end
 
     def verification_resend(properties = {}, opts = {})
       api_key = opts[:api_key] || @api_key
-      version = opts[:version] || @version
+      version = opts[:verification_version] || @verification_version
       timeout = opts[:timeout] || @timeout
 
       raise("properties cannot be empty") if properties.empty?
@@ -793,7 +793,7 @@ def verification_resend(properties = {}, opts = {})
 
     def verification_check(properties = {}, opts = {})
       api_key = opts[:api_key] || @api_key
-      version = opts[:version] || @version
+      version = opts[:verification_version] || @verification_version
       timeout = opts[:timeout] || @timeout
 
       raise("properties cannot be empty") if properties.empty?
diff --git a/lib/sift/version.rb b/lib/sift/version.rb
index 6675b86..659643f 100644
--- a/lib/sift/version.rb
+++ b/lib/sift/version.rb
@@ -1,4 +1,5 @@
 module Sift
-  VERSION = "4.5.0"
+  VERSION = "4.5.1"
   API_VERSION = "205"
+  VERIFICATION_API_VERSION = "1.1"
 end
diff --git a/test_integration_app/verification_api/test_verification_api.rb b/test_integration_app/verification_api/test_verification_api.rb
index 79eb0bd..339ebfc 100644
--- a/test_integration_app/verification_api/test_verification_api.rb
+++ b/test_integration_app/verification_api/test_verification_api.rb
@@ -2,13 +2,13 @@
 
 class VerificationAPI
 
-    @@client = Sift::Client.new(:api_key => ENV["API_KEY"],  :version=>1.1)
+    @@client = Sift::Client.new(:api_key => ENV["API_KEY"],  :version => 1.1)
 
     def send()
         properties = {
             "$user_id"            => $user_id,
             "$send_to"            => $user_email,
-            "$verification_type"            => "$email",
+            "$verification_type"  => "$email",
             "$brand_name"         => "MyTopBrand",
             "$language"           => "en",
             "$site_country" => "IN",
@@ -28,5 +28,5 @@ def send()
         
         return @@client.verification_send(properties)
     end
-    
+
 end