diff --git a/pyproject.toml b/pyproject.toml
index 5c3ca1e7..a1bcbd40 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,7 +48,7 @@ local_scheme = "no-local-version"
 
 [project.optional-dependencies]
 testing = [
-    "pytest >=7.4,<9.0",
+    "pytest >=7.4,<10.0",
     "pytest-cov >=2,<7",
     "pytest-json-report ~=1.5",
     "flake8 ==7.3.0",