diff --git a/CHANGELOG.md b/CHANGELOG.md
index ec8ce41..df5df40 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 * switched from flake8 to ruff
 * added missing docstrings
+* fixed dev requirements in pyproject, still pointing to sphinx
 
 ## [2.1.0] -- 2023-08-27
 
diff --git a/pyproject.toml b/pyproject.toml
index 04421bb..59f0d1a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,9 @@ blag = "blag.blag:main"
 [project.optional-dependencies]
 dev = [
     "build",
-    "sphinx",
+    "mkdocs",
+    "mkdocs-material",
+    "mkdocstrings[python]",
     "twine",
     "wheel",
     "pytest",