diff --git a/pyproject.toml b/pyproject.toml
index 866eb54..c90773e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ dynamic = ["readme", "version"]
 
 [project.optional-dependencies]
 tests = [
-    "pytest==8.4.2"
+    "pytest==9.0.0"
 ]
 linting = [
     "pylint==4.0.2"