diff --git a/python-PyQt6.changes b/python-PyQt6.changes
index d086740..20582b4 100644
--- a/python-PyQt6.changes
+++ b/python-PyQt6.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Aug 19 07:33:23 UTC 2021 - Bernhard Wiedemann <bwiedemann@suse.com>
+
+- Stop writing mtime-based pyc files during tests (boo#1047218)
+
 -------------------------------------------------------------------
 Wed Jul 14 22:42:04 UTC 2021 - Ben Greiner <code@bnavigator.de>
 
diff --git a/python-PyQt6.spec b/python-PyQt6.spec
index 6a9e645..90244fa 100644
--- a/python-PyQt6.spec
+++ b/python-PyQt6.spec
@@ -121,6 +121,7 @@ dos2unix examples/quick/models/*/view.qml
 %python_expand %fdupes %{buildroot}%{$python_sitearch}
 
 %check
+export PYTHONDONTWRITEBYTECODE=1 # boo#1047218
 %{python_expand # there is no test suite. If it compiles and imports, it should be okay.
 export PYTHONPATH=%{buildroot}%{$python_sitearch}
 $python -c 'from PyQt6 import QtCore; assert QtCore.PYQT_VERSION_STR == "%{version}"'