diff --git a/tests/conftest.py b/tests/conftest.py
index 9fd73fe73..fae1e455a 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -30,6 +30,7 @@ import textwrap
 import warnings
 
 import pytest
+import hypothesis
 
 import helpers.stubs as stubsmod
 from helpers import logfail
@@ -42,6 +43,10 @@ from PyQt5.QtNetwork import QNetworkCookieJar
 import xvfbwrapper
 
 
+# Set hypothesis settings
+hypothesis.Settings.default.strict = True
+
+
 def _apply_platform_markers(item):
     """Apply a skip marker to a given item."""
     markers = [