diff --git a/pyproject.toml b/pyproject.toml
index 36c371e..584cf79 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,10 +13,9 @@ ansi2html = "^1.6.0"
 gunicorn = "^20.0.4"
 
 [tool.poetry.dev-dependencies]
-black = "^20.8b1"
-flake8 = "^3.8.4"
+black = "^22.1.0"
+flake8 = "^4.0.1"
 isort = "^5.7.0"
-ipython = "^7.21.0"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]