FixDownLoadErrorInAppveyorCi
diff --git a/build/appveyor/MING-appveyor-install.bat b/build/appveyor/MING-appveyor-install.bat
index 4b5d730..31b9bd7 100644
--- a/build/appveyor/MING-appveyor-install.bat
+++ b/build/appveyor/MING-appveyor-install.bat
@@ -25,6 +25,9 @@
CALL cl_setenv.bat || EXIT /B
CALL cl_showenv.bat || EXIT /B
+SET BOOSTPKG=mingw-w64-x86_64-boost-1.71.0-1-any.pkg.tar.xz
+SET IGNORE=--ignore mingw-w64-x86_64-boost
+
SET PACKAGES=^
--needed -S bison flex make ^
mingw-w64-%MINGWPLAT%-boost ^
@@ -49,3 +52,4 @@
:: %BASH% -lc "pacman --noconfirm -Su %IGNORE%" || EXIT /B
::
%BASH% -lc "pacman --noconfirm %PACKAGES%" || EXIT /B
+%BASH% -lc "wget http://repo.msys2.org/mingw/x86_64/%BOOSTPKG% && pacman -- noconfirm --needed -U %BOOSTPKG% && rm %BOOKSTPKG%" || EXIT /B
diff --git a/build/appveyor/MSYS-appveyor-install.bat b/build/appveyor/MSYS-appveyor-install.bat
index a818df3..6357f23 100644
--- a/build/appveyor/MSYS-appveyor-install.bat
+++ b/build/appveyor/MSYS-appveyor-install.bat
@@ -26,7 +26,7 @@
CALL cl_showenv.bat || EXIT /B
:: We're going to keep boost at a version cmake understands
-SET BOOSTPKG=mingw-w64-x86_64-boost-1.64.0-3-any.pkg.tar.xz
+SET BOOSTPKG=mingw-w64-x86_64-boost-1.71.0-1-any.pkg.tar.xz
SET IGNORE=--ignore mingw-w64-x86_64-boost
SET PACKAGES=^