diff --git a/built/download.js b/built/download.js
index 723be20..c91006b 100644
--- a/built/download.js
+++ b/built/download.js
@@ -38,7 +38,7 @@ export async function downloadUrl(url, path, settings = defaultDownloadConfig) {
             http: settings.httpAgent,
             https: settings.httpsAgent,
         },
-        http2: true,
+        http2: false, // default
         retry: {
             limit: 0,
         },
diff --git a/src/download.ts b/src/download.ts
index 9889bfb..a484c85 100644
--- a/src/download.ts
+++ b/src/download.ts
@@ -57,7 +57,7 @@ export async function downloadUrl(url: string, path: string, settings:DownloadCo
             http: settings.httpAgent,
             https: settings.httpsAgent,
         },
-        http2: true,
+        http2: false,	// default
         retry: {
             limit: 0,
         },