diff --git a/.ci/test_windows.ps1 b/.ci/test_windows.ps1
index 1e14cec3f..80e0bb220 100644
--- a/.ci/test_windows.ps1
+++ b/.ci/test_windows.ps1
@@ -101,9 +101,9 @@ elseif ($env:TASK -eq "bdist") {
 } elseif (($env:APPVEYOR -eq "true") -and ($env:TASK -eq "python")) {
   cd $env:BUILD_SOURCESDIRECTORY
   if ($env:COMPILER -eq "MINGW") {
-    sh $env:BUILD_SOURCESDIRECTORY/build-python.sh install --mingw ; Check-Output $?
+    sh $env:BUILD_SOURCESDIRECTORY/build-python.sh install --user --mingw ; Check-Output $?
   } else {
-    sh $env:BUILD_SOURCESDIRECTORY/build-python.sh install ; Check-Output $?
+    sh $env:BUILD_SOURCESDIRECTORY/build-python.sh install --user; Check-Output $?
   }
 }
 
diff --git a/build-python.sh b/build-python.sh
index bcd8cb265..505d61e22 100755
--- a/build-python.sh
+++ b/build-python.sh
@@ -322,6 +322,7 @@ if test "${INSTALL}" = true; then
     cd ../dist
     pip install \
         ${PIP_INSTALL_ARGS} \
+        --force-reinstall \
         --find-links=. \
         lightgbm
     cd ../