diff --git a/pyproject.toml b/pyproject.toml
index c87cef651..ed1f4fea4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ classifiers = [
     "Programming Language :: Python :: 3",
 ]
 dependencies = [
-    "asdf >=2.15.0",
+    "asdf >=3.1.0",
     "asdf-astropy >=0.5.0",
     "astropy >=5.3.0",
     "crds >=11.16.16",