diff --git a/news/5678.bugfix.rst b/news/5678.bugfix.rst
new file mode 100644
index 0000000000..6d881cf004
--- /dev/null
+++ b/news/5678.bugfix.rst
@@ -0,0 +1,2 @@
+Fix installation issues stemming from unicode characters in
+file paths.
diff --git a/pyproject.toml b/pyproject.toml
index 69877c3dfe..1c105502fc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -64,3 +64,13 @@
 		directory = "build"
 		name = "Bootloader build"
 		showcontent = true
+
+[build-system]
+# Tells pip to install wheel before trying to install PyInstaller
+# from an sdist or from Github.
+# Installing without wheel uses legacy `python setup.py install`
+# which has issues with unicode paths.
+requires = [
+	"wheel",
+	"setuptools",
+]