diff --git a/pyproject.toml b/pyproject.toml
index e10001d..5b0165a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,7 +43,7 @@ plugins = ["ariadne_codegen.contrib.shorter_results.ShorterResultsPlugin"]
 [project.optional-dependencies]
 dev = [
     "ruff>=0.14.0,<0.15.0",
-    "pytest>=8.3,<9",
+    "pytest>=9,<10",
     "build>=1.3,<2",
     "pytest-cov>=7,<8",
     "pre-commit",