diff --git a/pyproject.toml b/pyproject.toml
index 38e0ddeb6..13496c2f5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ classifiers = [
 requires-python = ">=3.9"
 dependencies = [
     "numpy >=1.20",
-    "asdf >=2.15.1",
+    "asdf >=2.15.1,<3",
     "pandas >=1.0",
     "xarray >=2022.9.0",
     "scipy >=1.6.2",
@@ -64,7 +64,7 @@ test = [
     "pytest >=6",
     "pytest-cov",
     "pytest-xdist",
-    "nbval",
+    "nbval <0.10",
 ]
 vis = [
     "weldx_widgets >=0.2",