diff --git a/pyproject.toml b/pyproject.toml
index 0796e27..5b64edf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ urls.Source = "https://github.com/jan-mue/geometer"
 dev = [
     "coverage==7.10.7",
     "mypy==1.19.1",
-    "pytest==8.4.2",
+    "pytest==9.0.2",
 ]
 docs = [
     "sphinx==7.4.7; python_version<'3.10'",