diff --git a/UI/win-update/updater/updater.cpp b/UI/win-update/updater/updater.cpp
index ced9b8e7665db0482f0b20bb31d4cbb49a4c74f3..815fde0333207331be36b250f0fa47ae9f488645 100644
--- a/UI/win-update/updater/updater.cpp
+++ b/UI/win-update/updater/updater.cpp
@@ -339,7 +339,10 @@ static inline void CleanupPartialUpdates()
 
 bool DownloadWorkerThread()
 {
-	const DWORD tlsProtocols = WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_2;
+	const DWORD tlsProtocols = WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_2 |
+				   WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_3;
+
+	const DWORD enableHTTP2Flag = WINHTTP_PROTOCOL_FLAG_HTTP2;
 
 	HttpHandle hSession = WinHttpOpen(L"OBS Studio Updater/2.1",
 					  WINHTTP_ACCESS_TYPE_DEFAULT_PROXY,
@@ -354,6 +357,9 @@ bool DownloadWorkerThread()
 	WinHttpSetOption(hSession, WINHTTP_OPTION_SECURE_PROTOCOLS,
 			 (LPVOID)&tlsProtocols, sizeof(tlsProtocols));
 
+	WinHttpSetOption(hSession, WINHTTP_OPTION_ENABLE_HTTP_PROTOCOL,
+			 (LPVOID)&enableHTTP2Flag, sizeof(enableHTTP2Flag));
+
 	HttpHandle hConnect = WinHttpConnect(hSession,
 					     L"cdn-fastly.obsproject.com",
 					     INTERNET_DEFAULT_HTTPS_PORT, 0);