diff --git a/pyproject.toml b/pyproject.toml
index 83730722..957a60ce 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,9 +33,9 @@ myst-parser = { version = "*", optional = true }
 pre-commit = { version = "*", optional = true }
 pytest = { version = "*", optional = true }
 renku-sphinx-theme = { version = "*", optional = true }
-sphinx = { version = "*", optional = true }
+sphinx = { version = ">=6.2.1", optional = true }
 sphinx_rtd_theme = { version = "*", optional = true }
-sphinx-autoapi = { version = "*", optional = true }
+sphinx-autoapi = { version = ">=3.0.0", optional = true }
 sphinx-math-dollar = { version = "*", optional = true }
 tox = { version = "*", optional = true }
 
@@ -85,8 +85,6 @@ all = [
 "Homepage" = "https://gfn.readthedocs.io/en/latest/"
 "Bug Tracker" = "https://github.com/saleml/gfn/issues"
 
-
-
 [tool.black]
 py36 = true
 include = '\.pyi?$'