diff --git a/jupyterlab_server/spec.py b/jupyterlab_server/spec.py
index 8bec5b8b..6abc929a 100644
--- a/jupyterlab_server/spec.py
+++ b/jupyterlab_server/spec.py
@@ -6,10 +6,15 @@
 
 def get_openapi_spec():
     """Get the OpenAPI spec object."""
-    from openapi_core import OpenAPISpec as Spec
+    try:
+        from openapi_core import OpenAPISpec as Spec
+
+        create_spec = Spec.create
+    except ImportError:
+        from openapi_core import create_spec
 
     openapi_spec_dict = get_openapi_spec_dict()
-    return Spec.create(openapi_spec_dict)
+    return create_spec(openapi_spec_dict)
 
 
 def get_openapi_spec_dict():