diff --git a/pyproject.toml b/pyproject.toml
index 6e931ed..d7c466c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,13 +15,12 @@ authors = ["Georgios Konstantopoulos <me@gakonst.com>"]
 
 [tool.poetry.dependencies]
 python = ">=3.7"
-maturin = "^0.13.5"
-pytest = "^7.1.3"
+pytest = "^7.1.3"  # TODO: move this to test dependencies
 
 [tool.poetry.dev-dependencies]
 black = "^22.8.0"
 mypy = "^0.981"
 
 [build-system]
-requires = ["maturin>=1.4,<1.5"]
+requires = ["maturin>=1.5,<1.6"]
 build-backend = "maturin"