diff --git a/KiwiPods/Networking/NetworkManager.swift b/KiwiPods/Networking/NetworkManager.swift
index ff85a6b..905d8dd 100644
--- a/KiwiPods/Networking/NetworkManager.swift
+++ b/KiwiPods/Networking/NetworkManager.swift
@@ -27,7 +27,7 @@ open class NetworkManager: NSObject {
             case .success(let value):
                 do {
                     decoder.keyDecodingStrategy = .convertFromSnakeCase
-                    if let obj = try ModelClass.objectFrom(json: value, decoder: decoder) as? ModelClass {
+                    if let obj = try ModelClass.objectFrom(json: value, decoder: decoder) {
                         let model = Response.ResponseValue(value: obj, statusCode: response.response?.statusCode)
                         completion(Response.success(model))
                     } else {
diff --git a/KiwiPods/Networking/NetworkModel.swift b/KiwiPods/Networking/NetworkModel.swift
index 46d2784..84c6c31 100644
--- a/KiwiPods/Networking/NetworkModel.swift
+++ b/KiwiPods/Networking/NetworkModel.swift
@@ -78,11 +78,11 @@ public extension ParameterConvertible {
     }
     public func toParams()throws -> [String: Any]? {
         do {
-            let data = try JSONEncoder().encode(self)
-            if let dict = try? JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions.mutableContainers) as? [String: Any] {
-                return dict
-            }
-            return nil
+            let encoder = JSONEncoder()
+            encoder.keyEncodingStrategy = .convertToSnakeCase
+            let data = try encoder.encode(self)
+            let dict = try JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions.mutableContainers) as? [String: Any]
+            return dict
         } catch let error {
             throw error
         }