diff --git a/pyproject.toml b/pyproject.toml
index f18b336..52481f3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,8 @@ exclude = ["language_data/data/cldr", "language_data/data/cldr-json"]
 python = ">= 3.8"
 marisa-trie = "^0.7.7"
 
-[tool.poetry.dev-dependencies]
+[tool.poetry.group.dev.dependencies]
+pytest = "^8.0.1"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]