diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f832f28..ab0f9f47 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -164,3 +164,7 @@ Updated nuget package dependencies
 ### Changed
 
 Fixed handling of No Content responses
+
+### Added
+
+- Added basic ability to modify the HttpClient in a request
diff --git a/ShipEngineSDK/ShipEngine.cs b/ShipEngineSDK/ShipEngine.cs
index f08206e7..13dc1e37 100644
--- a/ShipEngineSDK/ShipEngine.cs
+++ b/ShipEngineSDK/ShipEngine.cs
@@ -225,6 +225,17 @@ public ShipEngine(HttpClient httpClient) : base()
             _client = httpClient;
         }
 
+        /// <summary>
+        /// Modifies the request before it is sent to the ShipEngine API
+        /// </summary>
+        /// <param name="modifyRequest"></param>
+        /// <returns></returns>
+        public ShipEngine ModifyRequest(Action<HttpRequestMessage> modifyRequest)
+        {
+            base.ModifyRequest = modifyRequest;
+            return this;
+        }
+
         /// <summary>
         /// Dispose of the ShipEngine client
         /// </summary>
diff --git a/ShipEngineSDK/ShipEngineClient.cs b/ShipEngineSDK/ShipEngineClient.cs
index 9d72508d..62163ccb 100644
--- a/ShipEngineSDK/ShipEngineClient.cs
+++ b/ShipEngineSDK/ShipEngineClient.cs
@@ -45,6 +45,11 @@ public class ShipEngineClient
         /// </summary>
         public CancellationToken CancellationToken { get; set; }
 
+        /// <summary>
+        /// Modifies the client request before it is sent
+        /// </summary>
+        public Action<HttpRequestMessage>? ModifyRequest { get; set; }
+
         /// <summary>
         /// Sets the HttpClient User agent, the json media type, and the API key to be used
         /// for all ShipEngine API calls unless overrwritten at the method level.
@@ -204,6 +209,7 @@ public virtual async Task<T> SendHttpRequestAsync<T>(HttpMethod method, string p
                 try
                 {
                     var request = BuildRequest(method, path, jsonContent);
+                    ModifyRequest?.Invoke(request);
                     response = await client.SendAsync(request, cancellationToken);
 
                     var deserializedResult = await DeserializedResultOrThrow<T>(response);
diff --git a/package.json b/package.json
index 2975d10c..2239a9bb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "shipengine-dotnet",
-  "version": "2.2.0",
+  "version": "2.2.1",
   "description": "Package primarily used to generate the API and models from OpenApi spec\"",
   "main": "index.js",
   "directories": {