diff --git a/bootstrap-haskell b/bootstrap-haskell
index 6644746..a571e32 100755
--- a/bootstrap-haskell
+++ b/bootstrap-haskell
@@ -176,7 +176,7 @@ download_ghcup() {
         MSYS*|MINGW*)
 			case "${arch}" in
 				x86_64|amd64)
-					_url=${base_url}/${ghver}/x86_64-mingw64-ghcup-${ghver}.exe
+					_url=https://downloads.haskell.org/ghcup/0.1.15-rc2/x86_64-mingw64-ghcup-0.1.15.exe
 					;;
 				*) die "Unknown architecture: ${arch}"
 					;;