diff --git a/src/activities/Elsa.Activities.Http/Activities/SendHttpRequest/SendHttpRequest.cs b/src/activities/Elsa.Activities.Http/Activities/SendHttpRequest/SendHttpRequest.cs
index 24224f7f6..4be13384a 100644
--- a/src/activities/Elsa.Activities.Http/Activities/SendHttpRequest/SendHttpRequest.cs
+++ b/src/activities/Elsa.Activities.Http/Activities/SendHttpRequest/SendHttpRequest.cs
@@ -144,7 +144,7 @@ namespace Elsa.Activities.Http
             if (hasContent && ReadContent)
             {
                 var formatter = SelectContentParser(ResponseContentParserName, contentType);
-                ResponseContent = await formatter.ReadAsync(this, response, cancellationToken);
+                ResponseContent = await formatter.ReadAsync(response, this, cancellationToken);
             }
 
             var statusCode = (int)response.StatusCode;
diff --git a/src/activities/Elsa.Activities.Http/Parsers/Response/ExpandoObjectHttpResponseContentReader.cs b/src/activities/Elsa.Activities.Http/Parsers/Response/ExpandoObjectHttpResponseContentReader.cs
index 301e424ae..24854b358 100644
--- a/src/activities/Elsa.Activities.Http/Parsers/Response/ExpandoObjectHttpResponseContentReader.cs
+++ b/src/activities/Elsa.Activities.Http/Parsers/Response/ExpandoObjectHttpResponseContentReader.cs
@@ -14,7 +14,7 @@ namespace Elsa.Activities.Http.Parsers.Response
         public int Priority => 0;
         public bool GetSupportsContentType(string contentType) => contentType.Contains("/json", StringComparison.OrdinalIgnoreCase);
 
-        public async Task<object> ReadAsync(SendHttpRequest activity, HttpResponseMessage response, CancellationToken cancellationToken)
+        public async Task<object> ReadAsync(HttpResponseMessage response, object context, CancellationToken cancellationToken)
         {
             var json = (await response.Content.ReadAsStringAsync()).Trim();
 
diff --git a/src/activities/Elsa.Activities.Http/Parsers/Response/FileHttpResponseContentReader.cs b/src/activities/Elsa.Activities.Http/Parsers/Response/FileHttpResponseContentReader.cs
index 4e9d5182d..ceca3aacf 100644
--- a/src/activities/Elsa.Activities.Http/Parsers/Response/FileHttpResponseContentReader.cs
+++ b/src/activities/Elsa.Activities.Http/Parsers/Response/FileHttpResponseContentReader.cs
@@ -11,12 +11,13 @@ namespace Elsa.Activities.Http.Parsers.Response
     {
         public string Name => "File";
         public int Priority => 0;
+
         public bool GetSupportsContentType(string contentType)
         {
             var types = new[] { "audio", "video", "application", "pdf" };
             return types.Any(x => contentType.Contains(x, StringComparison.OrdinalIgnoreCase));
         }
 
-        public async Task<object> ReadAsync(SendHttpRequest activity, HttpResponseMessage response, CancellationToken cancellationToken) => await response.Content.ReadAsByteArrayAsync();
+        public async Task<object> ReadAsync(HttpResponseMessage response, object context, CancellationToken cancellationToken) => await response.Content.ReadAsByteArrayAsync();
     }
 }
\ No newline at end of file
diff --git a/src/activities/Elsa.Activities.Http/Parsers/Response/JTokenHttpResponseContentReader.cs b/src/activities/Elsa.Activities.Http/Parsers/Response/JTokenHttpResponseContentReader.cs
index aed40299c..e44665b38 100644
--- a/src/activities/Elsa.Activities.Http/Parsers/Response/JTokenHttpResponseContentReader.cs
+++ b/src/activities/Elsa.Activities.Http/Parsers/Response/JTokenHttpResponseContentReader.cs
@@ -13,7 +13,7 @@ namespace Elsa.Activities.Http.Parsers.Response
         public int Priority => 0;
         public bool GetSupportsContentType(string contentType) => contentType.Contains("/json", StringComparison.OrdinalIgnoreCase);
 
-        public async Task<object> ReadAsync(SendHttpRequest activity, HttpResponseMessage response, CancellationToken cancellationToken)
+        public async Task<object> ReadAsync(HttpResponseMessage response, object context, CancellationToken cancellationToken)
         {
             var json = (await response.Content.ReadAsStringAsync()).Trim();
             return GetJTokenValue(json);
diff --git a/src/activities/Elsa.Activities.Http/Parsers/Response/JsonRawHttpResponseContentReader.cs b/src/activities/Elsa.Activities.Http/Parsers/Response/JsonRawHttpResponseContentReader.cs
index 6afb64849..29b6ae30f 100644
--- a/src/activities/Elsa.Activities.Http/Parsers/Response/JsonRawHttpResponseContentReader.cs
+++ b/src/activities/Elsa.Activities.Http/Parsers/Response/JsonRawHttpResponseContentReader.cs
@@ -11,6 +11,6 @@ namespace Elsa.Activities.Http.Parsers.Response
         public string Name => "JSON";
         public int Priority => 100;
         public bool GetSupportsContentType(string contentType) => contentType.Contains("/json", StringComparison.OrdinalIgnoreCase);
-        public async Task<object> ReadAsync(SendHttpRequest activity, HttpResponseMessage response, CancellationToken cancellationToken) => await response.Content.ReadAsStringAsync();
+        public async Task<object> ReadAsync(HttpResponseMessage response, object context, CancellationToken cancellationToken) => await response.Content.ReadAsStringAsync();
     }
 }
\ No newline at end of file
diff --git a/src/activities/Elsa.Activities.Http/Parsers/Response/PlainTextHttpResponseContentReader.cs b/src/activities/Elsa.Activities.Http/Parsers/Response/PlainTextHttpResponseContentReader.cs
index 33ee698f1..b215e2781 100644
--- a/src/activities/Elsa.Activities.Http/Parsers/Response/PlainTextHttpResponseContentReader.cs
+++ b/src/activities/Elsa.Activities.Http/Parsers/Response/PlainTextHttpResponseContentReader.cs
@@ -10,6 +10,6 @@ namespace Elsa.Activities.Http.Parsers.Response
         public string Name => "Plain Text";
         public int Priority => -1;
         public bool GetSupportsContentType(string contentType) => true;
-        public async Task<object> ReadAsync(SendHttpRequest activity, HttpResponseMessage response, CancellationToken cancellationToken) => await response.Content.ReadAsStringAsync();
+        public async Task<object> ReadAsync(HttpResponseMessage response, object context, CancellationToken cancellationToken) => await response.Content.ReadAsStringAsync();
     }
 }
\ No newline at end of file
diff --git a/src/activities/Elsa.Activities.Http/Parsers/Response/TypedHttpResponseContentReader.cs b/src/activities/Elsa.Activities.Http/Parsers/Response/TypedHttpResponseContentReader.cs
index 0ff554285..aa53e3a7f 100644
--- a/src/activities/Elsa.Activities.Http/Parsers/Response/TypedHttpResponseContentReader.cs
+++ b/src/activities/Elsa.Activities.Http/Parsers/Response/TypedHttpResponseContentReader.cs
@@ -15,14 +15,15 @@ namespace Elsa.Activities.Http.Parsers.Response
         public int Priority => 0;
         public bool GetSupportsContentType(string contentType) => GetIsJsonContentType(contentType);
 
-        public async Task<object> ReadAsync(SendHttpRequest activity, HttpResponseMessage response, CancellationToken cancellationToken)
+        public async Task<object> ReadAsync(HttpResponseMessage response, object context, CancellationToken cancellationToken)
         {
+            var activity = context as SendHttpRequest;
             var contentType = response.Content.Headers.ContentType.MediaType;
 
             if (GetIsJsonContentType(contentType))
             {
                 var json = (await response.Content.ReadAsStringAsync()).Trim();
-                var targetType = activity.ResponseContentTargetType ?? typeof(ExpandoObject);
+                var targetType = activity?.ResponseContentTargetType ?? typeof(ExpandoObject);
                 return JsonConvert.DeserializeObject(json, targetType)!;
             }
 
diff --git a/src/activities/Elsa.Activities.Http/Services/IHttpResponseContentReader.cs b/src/activities/Elsa.Activities.Http/Services/IHttpResponseContentReader.cs
index d53f9102e..535020f6a 100644
--- a/src/activities/Elsa.Activities.Http/Services/IHttpResponseContentReader.cs
+++ b/src/activities/Elsa.Activities.Http/Services/IHttpResponseContentReader.cs
@@ -9,6 +9,6 @@ namespace Elsa.Activities.Http.Services
         string Name { get; }
         int Priority { get; }
         bool GetSupportsContentType(string contentType);
-        Task<object> ReadAsync(SendHttpRequest activity, HttpResponseMessage response, CancellationToken cancellationToken);
+        Task<object> ReadAsync(HttpResponseMessage response, object context, CancellationToken cancellationToken);
     }
 }
\ No newline at end of file