diff --git a/pyproject.toml b/pyproject.toml
index be8e906b..9af73fa2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ dev = [
     "pre-commit>=2.16.0",
     "pytest>=7.1.2",
     "pytest-cov>=3.0.0",
-    "pytest-mock>=3.7.0",
+    "pytest-mock>=3.15.1",
     "black>=23.1.0",
     "belay>=0.21.3",
     "tqdm>=4.68.2",