diff --git a/apptrust/http/http_client.go b/apptrust/http/http_client.go
index ae24573..2dcd25e 100644
--- a/apptrust/http/http_client.go
+++ b/apptrust/http/http_client.go
@@ -26,7 +26,7 @@ type ApptrustHttpClient interface {
 	Post(path string, requestBody interface{}, params map[string]string) (resp *http.Response, body []byte, err error)
 	Get(path string) (resp *http.Response, body []byte, err error)
 	Patch(path string, requestBody interface{}) (resp *http.Response, body []byte, err error)
-	Delete(path string) (resp *http.Response, body []byte, err error)
+	Delete(path string, params map[string]string) (resp *http.Response, body []byte, err error)
 }
 
 type apptrustHttpClient struct {
@@ -139,8 +139,8 @@ func (c *apptrustHttpClient) toJsonBytes(payload interface{}) ([]byte, error) {
 	return jsonBytes, nil
 }
 
-func (c *apptrustHttpClient) Delete(path string) (resp *http.Response, body []byte, err error) {
-	url, err := utils.BuildUrl(c.serverDetails.Url, apptrustApiPath+path, nil)
+func (c *apptrustHttpClient) Delete(path string, params map[string]string) (resp *http.Response, body []byte, err error) {
+	url, err := utils.BuildUrl(c.serverDetails.Url, apptrustApiPath+path, params)
 	if err != nil {
 		return nil, nil, err
 	}
diff --git a/apptrust/service/applications/application_service.go b/apptrust/service/applications/application_service.go
index 0464aaa..f931c6b 100644
--- a/apptrust/service/applications/application_service.go
+++ b/apptrust/service/applications/application_service.go
@@ -60,7 +60,7 @@ func (as *applicationService) UpdateApplication(ctx service.Context, requestBody
 
 func (as *applicationService) DeleteApplication(ctx service.Context, applicationKey string) error {
 	endpoint := fmt.Sprintf("/v1/applications/%s", applicationKey)
-	response, responseBody, err := ctx.GetHttpClient().Delete(endpoint)
+	response, responseBody, err := ctx.GetHttpClient().Delete(endpoint, nil)
 	if err != nil {
 		return err
 	}
diff --git a/apptrust/service/packages/package_service.go b/apptrust/service/packages/package_service.go
index d23abe9..a8546e4 100644
--- a/apptrust/service/packages/package_service.go
+++ b/apptrust/service/packages/package_service.go
@@ -42,7 +42,7 @@ func (ps *packageService) BindPackage(ctx service.Context, applicationKey string
 
 func (ps *packageService) UnbindPackage(ctx service.Context, applicationKey, pkgType, pkgName, pkgVersion string) error {
 	endpoint := fmt.Sprintf("/v1/applications/%s/packages/%s/%s/%s", applicationKey, pkgType, url.PathEscape(pkgName), pkgVersion)
-	response, responseBody, err := ctx.GetHttpClient().Delete(endpoint)
+	response, responseBody, err := ctx.GetHttpClient().Delete(endpoint, nil)
 	if err != nil {
 		return err
 	}
diff --git a/apptrust/service/packages/package_service_test.go b/apptrust/service/packages/package_service_test.go
index 82e67f0..afa2bba 100644
--- a/apptrust/service/packages/package_service_test.go
+++ b/apptrust/service/packages/package_service_test.go
@@ -141,7 +141,7 @@ func TestUnbindPackage(t *testing.T) {
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			mockHttpClient := mockhttp.NewMockApptrustHttpClient(ctrl)
-			mockHttpClient.EXPECT().Delete(fmt.Sprintf("/v1/applications/%s/packages/%s/%s/%s", applicationKey, tt.pkgType, url.PathEscape(tt.pkgName), tt.pkgVersion)).
+			mockHttpClient.EXPECT().Delete(fmt.Sprintf("/v1/applications/%s/packages/%s/%s/%s", applicationKey, tt.pkgType, url.PathEscape(tt.pkgName), tt.pkgVersion), nil).
 				Return(tt.mockResponse, []byte(""), tt.mockError).Times(1)
 
 			mockCtx := mockservice.NewMockContext(ctrl)
diff --git a/apptrust/service/versions/version_service.go b/apptrust/service/versions/version_service.go
index 16af4e4..77bafb3 100644
--- a/apptrust/service/versions/version_service.go
+++ b/apptrust/service/versions/version_service.go
@@ -101,7 +101,7 @@ func (vs *versionService) RollbackAppVersion(ctx service.Context, applicationKey
 
 func (vs *versionService) DeleteAppVersion(ctx service.Context, applicationKey, version string) error {
 	url := fmt.Sprintf("/v1/applications/%s/versions/%s", applicationKey, version)
-	response, responseBody, err := ctx.GetHttpClient().Delete(url)
+	response, responseBody, err := ctx.GetHttpClient().Delete(url, map[string]string{"async": "false"})
 	if err != nil {
 		return err
 	}