diff --git a/pyproject.toml b/pyproject.toml
index 335641e2..d97e46d4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ classifiers = [
 dependencies = [
     "bec_ipython_client~=3.70",  # needed for jupyter console
     "bec_lib~=3.70",
-    "bec_qthemes~=1.0, >=1.1.1",
+    "bec_qthemes~=1.0, >=1.1.2",
     "black~=25.0",               # needed for bw-generate-cli
     "isort~=5.13, >=5.13.2",     # needed for bw-generate-cli
     "pydantic~=2.0",
diff --git a/tests/unit_tests/conftest.py b/tests/unit_tests/conftest.py
index e43bd959..6eb093e9 100644
--- a/tests/unit_tests/conftest.py
+++ b/tests/unit_tests/conftest.py
@@ -27,8 +27,7 @@ def pytest_runtest_makereport(item, call):
 @pytest.fixture(autouse=True)
 def qapplication(qtbot, request, testable_qtimer_class):  # pylint: disable=unused-argument
     qapp = QApplication.instance()
-    if not hasattr(qapp, "theme"):
-        apply_theme("light")
+    apply_theme("light")
     qapp.processEvents()
 
     yield
@@ -42,7 +41,6 @@ def qapplication(qtbot, request, testable_qtimer_class):  # pylint: disable=unus
     bec_dispatcher.stop_cli_server()
 
     testable_qtimer_class.check_all_stopped(qtbot)
-    qapp = QApplication.instance()
     qapp.processEvents()
     if hasattr(qapp, "os_listener") and qapp.os_listener:
         qapp.removeEventFilter(qapp.os_listener)