diff --git a/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIHelper.swift b/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIHelper.swift
index 418f1c8512b..7041709f365 100644
--- a/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIHelper.swift
+++ b/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIHelper.swift
@@ -18,4 +18,22 @@ class APIHelper {
         }
         return destination
     }
+
+    static func convertBoolToString(source: [String: AnyObject]?) -> [String:AnyObject] {
+        var destination = [String:AnyObject]()
+        let theTrue = NSNumber(bool: true)
+        let theFalse = NSNumber(bool: false)
+        if (source != nil) {
+            for (key, value) in source! {
+                switch value {
+                    case let x where x === theTrue || x === theFalse:
+                        destination[key] = "\(value as! Bool)"
+                    default:
+                        destination[key] = value
+                }
+            }
+        }
+        return destination
+    }
+
 }
diff --git a/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIs/PetAPI.swift b/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIs/PetAPI.swift
index 64aa3c8803c..c7e5a6402b5 100644
--- a/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIs/PetAPI.swift
+++ b/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIs/PetAPI.swift
@@ -57,10 +57,12 @@ public class PetAPI: APIBase {
         let path = "/pet"
         let URLString = PetstoreClientAPI.basePath + path
         let parameters = body?.encodeToJSON() as? [String:AnyObject]
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Void>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "POST", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "POST", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -111,11 +113,14 @@ public class PetAPI: APIBase {
         let URLString = PetstoreClientAPI.basePath + path
 
         let nillableParameters: [String:AnyObject?] = [:]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Void>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "DELETE", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "DELETE", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -174,11 +179,14 @@ public class PetAPI: APIBase {
         let nillableParameters: [String:AnyObject?] = [
             "status": status
         ]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<[Pet]>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "GET", URLString: URLString, parameters: parameters, isBody: false)
+        return requestBuilder.init(method: "GET", URLString: URLString, parameters: convertedParameters, isBody: false)
     }
 
     /**
@@ -276,11 +284,14 @@ public class PetAPI: APIBase {
         let nillableParameters: [String:AnyObject?] = [
             "tags": tags
         ]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<[Pet]>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "GET", URLString: URLString, parameters: parameters, isBody: false)
+        return requestBuilder.init(method: "GET", URLString: URLString, parameters: convertedParameters, isBody: false)
     }
 
     /**
@@ -380,11 +391,14 @@ public class PetAPI: APIBase {
         let URLString = PetstoreClientAPI.basePath + path
 
         let nillableParameters: [String:AnyObject?] = [:]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Pet>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "GET", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "GET", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -433,10 +447,12 @@ public class PetAPI: APIBase {
         let path = "/pet"
         let URLString = PetstoreClientAPI.basePath + path
         let parameters = body?.encodeToJSON() as? [String:AnyObject]
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Void>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "PUT", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "PUT", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -496,11 +512,14 @@ public class PetAPI: APIBase {
             "name": name,
             "status": status
         ]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Void>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "POST", URLString: URLString, parameters: parameters, isBody: false)
+        return requestBuilder.init(method: "POST", URLString: URLString, parameters: convertedParameters, isBody: false)
     }
 
     /**
@@ -560,11 +579,14 @@ public class PetAPI: APIBase {
             "additionalMetadata": additionalMetadata,
             "file": file
         ]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Void>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "POST", URLString: URLString, parameters: parameters, isBody: false)
+        return requestBuilder.init(method: "POST", URLString: URLString, parameters: convertedParameters, isBody: false)
     }
 
 }
diff --git a/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIs/StoreAPI.swift b/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIs/StoreAPI.swift
index 4521afd3d89..be7d36b91f3 100644
--- a/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIs/StoreAPI.swift
+++ b/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIs/StoreAPI.swift
@@ -56,11 +56,14 @@ public class StoreAPI: APIBase {
         let URLString = PetstoreClientAPI.basePath + path
 
         let nillableParameters: [String:AnyObject?] = [:]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Void>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "DELETE", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "DELETE", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -112,11 +115,14 @@ public class StoreAPI: APIBase {
         let URLString = PetstoreClientAPI.basePath + path
 
         let nillableParameters: [String:AnyObject?] = [:]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<[String:Int32]>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "GET", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "GET", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -194,11 +200,14 @@ public class StoreAPI: APIBase {
         let URLString = PetstoreClientAPI.basePath + path
 
         let nillableParameters: [String:AnyObject?] = [:]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Order>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "GET", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "GET", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -274,10 +283,12 @@ public class StoreAPI: APIBase {
         let path = "/store/order"
         let URLString = PetstoreClientAPI.basePath + path
         let parameters = body?.encodeToJSON() as? [String:AnyObject]
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Order>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "POST", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "POST", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
 }
diff --git a/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIs/UserAPI.swift b/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIs/UserAPI.swift
index 62018cd83c2..1b5ada9da67 100644
--- a/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIs/UserAPI.swift
+++ b/samples/client/petstore/swift/PetstoreClient/Classes/Swaggers/APIs/UserAPI.swift
@@ -54,10 +54,12 @@ public class UserAPI: APIBase {
         let path = "/user"
         let URLString = PetstoreClientAPI.basePath + path
         let parameters = body?.encodeToJSON() as? [String:AnyObject]
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Void>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "POST", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "POST", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -103,10 +105,12 @@ public class UserAPI: APIBase {
         let path = "/user/createWithArray"
         let URLString = PetstoreClientAPI.basePath + path
         let parameters = body?.encodeToJSON() as? [String:AnyObject]
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Void>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "POST", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "POST", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -152,10 +156,12 @@ public class UserAPI: APIBase {
         let path = "/user/createWithList"
         let URLString = PetstoreClientAPI.basePath + path
         let parameters = body?.encodeToJSON() as? [String:AnyObject]
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Void>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "POST", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "POST", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -203,11 +209,14 @@ public class UserAPI: APIBase {
         let URLString = PetstoreClientAPI.basePath + path
 
         let nillableParameters: [String:AnyObject?] = [:]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Void>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "DELETE", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "DELETE", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -293,11 +302,14 @@ public class UserAPI: APIBase {
         let URLString = PetstoreClientAPI.basePath + path
 
         let nillableParameters: [String:AnyObject?] = [:]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<User>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "GET", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "GET", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -352,11 +364,14 @@ public class UserAPI: APIBase {
             "username": username,
             "password": password
         ]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<String>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "GET", URLString: URLString, parameters: parameters, isBody: false)
+        return requestBuilder.init(method: "GET", URLString: URLString, parameters: convertedParameters, isBody: false)
     }
 
     /**
@@ -399,11 +414,14 @@ public class UserAPI: APIBase {
         let URLString = PetstoreClientAPI.basePath + path
 
         let nillableParameters: [String:AnyObject?] = [:]
+ 
         let parameters = APIHelper.rejectNil(nillableParameters)
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Void>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "GET", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "GET", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
     /**
@@ -453,10 +471,12 @@ public class UserAPI: APIBase {
         path = path.stringByReplacingOccurrencesOfString("{username}", withString: "\(username)", options: .LiteralSearch, range: nil)
         let URLString = PetstoreClientAPI.basePath + path
         let parameters = body?.encodeToJSON() as? [String:AnyObject]
-
+ 
+        let convertedParameters = APIHelper.convertBoolToString(parameters)
+ 
         let requestBuilder: RequestBuilder<Void>.Type = PetstoreClientAPI.requestBuilderFactory.getBuilder()
 
-        return requestBuilder.init(method: "PUT", URLString: URLString, parameters: parameters, isBody: true)
+        return requestBuilder.init(method: "PUT", URLString: URLString, parameters: convertedParameters, isBody: true)
     }
 
 }