diff --git a/pyproject.toml b/pyproject.toml
index 60ae515..4a5d18b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ numba = ">=0.57.1,<0.59.0"
 ipadic = "^1.0.0"
 
 [tool.poetry.group.dev.dependencies]
-pytest = "^7.4.0"
+pytest = ">=7.4,<9.0"
 pytest-cov = "^4.1.0"
 pytest-xdist = "^3.3.1"
 black = "^23.7.0"