[tests] Fix appveyor_install.ps1 installer script

Change-Id: I2dad602b5e51a807ffad0b52db1afbdaffc77dc5
---
M appveyor_install.ps1
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/appveyor_install.ps1 b/appveyor_install.ps1
index 41e421a..2cf579e 100644
--- a/appveyor_install.ps1
+++ b/appveyor_install.ps1
@@ -96,7 +96,7 @@
     if ($installer_ext -eq '.msi') {
         Write-Host "MSI installer is not supported"
     } else {
-        $uninstaller_path = DownloadPython 3.5.4 $platform_suffix
+        $uninstaller_path = DownloadPython 3.6.8 $platform_suffix
         InstallPythonEXE $installer_path $python_home $install_log $uninstaller_path
     }
 
@@ -111,7 +111,7 @@
 
 
 function InstallPythonEXE ($exepath, $python_home, $install_log, $unexepath) {
-    $uninstall_args = "/log C:\Python35-x64.log /quiet /uninstall InstallAllUsers=1 TargetDir=C:\Python35-x64\"
+    $uninstall_args = "/log C:\Python36-x64.log /quiet /uninstall InstallAllUsers=1 TargetDir=C:\Python36-x64\"
     RunCommand $unexepath $uninstall_args
     $install_args = "/log $install_log /quiet InstallAllUsers=1 TargetDir=$python_home\"
     RunCommand $exepath $install_args

