diff --git a/pyproject.toml b/pyproject.toml
index 55e01aa..ef6fc38 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ Repository = "https://github.com/AppliedIR/Valhuntir"
 
 [project.optional-dependencies]
 dev = [
-    "pytest>=7.0",
+    "pytest>=9.0.3",
     "pytest-cov>=4.0",
     "ruff>=0.4",
 ]