diff --git a/pyproject.toml b/pyproject.toml
index 4d3b615..1447678 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ snakemake = "^8.20.1"
 black = "^23.7.0"
 flake8 = ">=6.1,<8.0"
 coverage = "^7.3.0"
-pytest = ">=7.4.1,<9.0.0"
+pytest = ">=7.4.1,<10.0.0"
 
 [tool.coverage.report]
 fail_under = 74