diff --git a/pyproject.toml b/pyproject.toml
index 2e0d5a12..ce03d442 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ classifiers=[
 ]
 dependencies = [
     "e2xcore>=0.0.5",
-    "e2xauthoring>=0.2.1",
+    "e2xauthoring>=0.3.0,<0.4",
     "pandas"
 ]
 dynamic = ["version"]