diff --git a/packages/electron-auto-updater/src/GenericProvider.ts b/packages/electron-auto-updater/src/GenericProvider.ts
index 7a2378464f2..ea607a2b6fe 100644
--- a/packages/electron-auto-updater/src/GenericProvider.ts
+++ b/packages/electron-auto-updater/src/GenericProvider.ts
@@ -16,7 +16,7 @@ export class GenericProvider implements Provider<UpdateInfo> {
     const channelFile = getChannelFilename(this.channel)
     const pathname = path.posix.resolve(this.baseUrl.pathname || "/", `${channelFile}`)
     try {
-      result = await request<UpdateInfo>({hostname: this.baseUrl.hostname, port: this.baseUrl.port || "443", path: `${pathname}${this.baseUrl.search || ""}`})
+      result = await request<UpdateInfo>({hostname: this.baseUrl.hostname, port: this.baseUrl.port || "443", path: `${pathname}${this.baseUrl.search || ""}`, protocol: this.baseUrl.protocol})
     }
     catch (e) {
       if (e instanceof HttpError && e.response.statusCode === 404) {
diff --git a/packages/electron-auto-updater/src/electronHttpExecutor.ts b/packages/electron-auto-updater/src/electronHttpExecutor.ts
index 62a3ba831d6..cb5e0b03e9c 100644
--- a/packages/electron-auto-updater/src/electronHttpExecutor.ts
+++ b/packages/electron-auto-updater/src/electronHttpExecutor.ts
@@ -41,6 +41,7 @@ export class ElectronHttpExecutor extends HttpExecutor<Electron.RequestOptions,
       protocol: parsedUrl.protocol,
       hostname: parsedUrl.hostname,
       path: parsedUrl.path,
+      port: parsedUrl.port ? +parsedUrl.port : undefined,
       headers: {
         "User-Agent": "electron-builder"
       },
@@ -80,7 +81,7 @@ export class ElectronHttpExecutor extends HttpExecutor<Electron.RequestOptions,
       (<any>requestOptions.headers).authorization = token.startsWith("Basic") ? token : `token ${token}`
     }
 
-    requestOptions.protocol = "https:"
+    requestOptions.protocol = options.Protocol || "https:"
     return new BluebirdPromise<T>((resolve, reject, onCancel) => {
       const request = net.request(options, response => {
         try {