diff --git a/src/connector.rs b/src/connector.rs
index d628c26..8117a4e 100644
--- a/src/connector.rs
+++ b/src/connector.rs
@@ -32,8 +32,9 @@ impl HttpsConnector<HttpConnector> {
         let mut http = HttpConnector::new();
         http.enforce_http(false);
         let mut config = ClientConfig::new();
-        config.root_store =
-            rustls_native_certs::load_native_certs().expect("cannot access native cert store");
+        config.alpn_protocols = vec![b"h2".to_vec(), b"http/1.1".to_vec()];
+        config.root_store = rustls_native_certs::load_native_certs()
+            .expect("cannot access native cert store");
         config.ct_logs = Some(&ct_logs::LOGS);
         HttpsConnector {
             http,