diff --git a/pyproject.toml b/pyproject.toml
index 46f1a6f..ba3a88c7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -87,7 +87,7 @@ test = [
 docs = [
     "sphinx==6.2.1",
     "sphinx-rtd-theme==2.0.0",
-    "myst_parser==1.0.0",
+    "myst_parser>=4.0.0,<5.0",
 ]
 dev = [
     "oakutils[o3d]",