diff --git a/pyproject.toml b/pyproject.toml
index ef616b6..3d47ade 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -63,7 +63,7 @@ notebooks = [
 dev-tests = [
     "pytest>=8.3.1,<8.5",
     "pytest-cov>=6.0.0,<7.1",
-    "pytest-mock>=3.14.0,<3.15",
+    "pytest-mock>=3.14.0,<3.16",
     "scikit-learn>=1.5.1,<1.7",
 ]
 dev-ruff = [