diff --git a/pyproject.toml b/pyproject.toml
index dea7ee1..148f843 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ dependencies = [
 [project.optional-dependencies]
 license = ["revenueholdings-license>=0.1.0"]
 dev = [
-    "pytest>=7.0",
+    "pytest>=9.0.3",
     "pytest-cov>=4.0",
     "mcp>=1.0",
 ]