diff --git a/winbuild/appveyor_install_msys2_deps.sh b/winbuild/appveyor_install_msys2_deps.sh
index b13dc9e98..fbab280b3 100644
--- a/winbuild/appveyor_install_msys2_deps.sh
+++ b/winbuild/appveyor_install_msys2_deps.sh
@@ -1,11 +1,12 @@
 #!/bin/sh
 
-pacman -S --noconfirm mingw32/mingw-w64-i686-python3 \
-	   mingw32/mingw-w64-i686-python3-pip \
+pacman -S --noconfirm mingw32/mingw-w64-i686-python3-pip \
 	   mingw32/mingw-w64-i686-python3-setuptools \
 	   mingw32/mingw-w64-i686-python2-pip \
 	   mingw32/mingw-w64-i686-python2-setuptools \
 	   mingw-w64-i686-libjpeg-turbo
 
+C:/msys64/mingw32/bin/python3 -m pip install --upgrade pip
+
 /mingw32/bin/pip install pytest pytest-cov olefile
 /mingw32/bin/pip3 install pytest pytest-cov olefile