diff --git a/setup.py b/setup.py
index e9150264b6..07721e2e51 100644
--- a/setup.py
+++ b/setup.py
@@ -108,7 +108,7 @@ def dmf_data_files(root: str = DMF_DATA_ROOT) -> List[Tuple[str, List[str]]]:
         "prerelease": DEPENDENCIES_FOR_PRERELEASE_VERSION,
         "optional": [
             "tensorflow",  # idaes.surrogate.keras_surrogate
-            "gridx-prescient==2.1",  # idaes.tests.prescient
+            "gridx-prescient>=2.1",  # idaes.tests.prescient
             # A Lee 11-Jan-22: no precompiled version of CoolProp available for Pyhton 3.9
             "coolprop; python_version < '3.9'",  # idaes.generic_models.properties.general.coolprop
         ],