diff --git a/README.md b/README.md
index 07e9846..42bddd0 100644
--- a/README.md
+++ b/README.md
@@ -133,17 +133,27 @@ modelArrayCall().then { users in
 
 ## Settings
 
-Want to log all network calls and responses ?
+Want to log all network calls and responses?
 ```swift
 ws.logLevels = .debug
 ```
 
-Want to hide network activity indicator ?
+Want to hide network activity indicator?
 
 ```swift
 ws.showsNetworkActivityIndicator = false
 ```
 
+Want to override the default session manager to customize trust policies?
+
+```swift
+import Alamofire
+
+ws.sessionManager = SessionManager(serverTrustPolicyManager: ServerTrustPolicyManager(
+  policies: ["myspecialhostname.com" : .disableEvaluation]
+))
+```   
+
 ## Api Example
 Here is a Typical CRUD example for Articles :
 
diff --git a/Sources/ws/WS.swift b/Sources/ws/WS.swift
index 988d770..0f44186 100644
--- a/Sources/ws/WS.swift
+++ b/Sources/ws/WS.swift
@@ -51,6 +51,7 @@ open class WS {
     open var headers = [String: String]()
     open var requestAdapter: RequestAdapter?
     open var requestRetrier: RequestRetrier?
+    open var sessionManager: SessionManager?
     open var mandatoryQueryParams = Params()
 
     /**
@@ -85,6 +86,7 @@ open class WS {
         r.headers = headers
         r.requestAdapter = requestAdapter
         r.requestRetrier = requestRetrier
+        r.sessionManager = sessionManager
         r.errorHandler = errorHandler
         return r
     }
diff --git a/Sources/ws/WSRequest.swift b/Sources/ws/WSRequest.swift
index 2c20119..c21f398 100644
--- a/Sources/ws/WSRequest.swift
+++ b/Sources/ws/WSRequest.swift
@@ -52,6 +52,7 @@ open class WSRequest {
     open var errorHandler: ((JSON) -> Error?)?
     open var requestAdapter: RequestAdapter?
     open var requestRetrier: RequestRetrier?
+    open var sessionManager: SessionManager?
 
     private let logger = WSLogger()
     
@@ -84,14 +85,14 @@ open class WSRequest {
     }
 
     func wsSessionManager() -> SessionManager {
-        let sessionManager = Alamofire.SessionManager.default
+        let activeSessionManager = sessionManager ?? Alamofire.SessionManager.default
         if let adapter = requestAdapter {
-            sessionManager.adapter = adapter
+            activeSessionManager.adapter = adapter
         }
         if let retrier = requestRetrier {
-            sessionManager.retrier = retrier
+            activeSessionManager.retrier = retrier
         }
-        return sessionManager
+        return activeSessionManager
     }
     
     func wsRequest(_ urlRequest: URLRequestConvertible) -> DataRequest {
diff --git a/ws.podspec b/ws.podspec
index 90af0fa..b0b1507 100644
--- a/ws.podspec
+++ b/ws.podspec
@@ -1,7 +1,6 @@
 Pod::Spec.new do |s|
     s.name             = "ws"
-    s.version          = "5.1.1"
-    s.summary          = "Elegant JSON WebService for Swift ☁️"
+    s.version          = "5.1.1"    s.summary          = "Elegant JSON WebService for Swift ☁️"
     s.homepage         = "https://github.com/freshOS/ws"
     s.license          = { :type => "MIT", :file => "LICENSE" }
     s.author           = "S4cha"