diff --git a/setup.py b/setup.py
index d5aa8600d9..7faf4eadd6 100644
--- a/setup.py
+++ b/setup.py
@@ -82,7 +82,7 @@ def __getitem__(self, key):
     # Put abstract (non-versioned) deps here.
     # Concrete dependencies go in requirements[-dev].txt
     install_requires=[
-        "pyomo >= 6.8.1",
+        "pyomo @ https://github.com/IDAES/pyomo/archive/6.8.1.idaes.2024.11.18.zip",
         "pint >= 0.24.1",  # required to use Pyomo units. Pint 0.24.1 needed for Python 3.9 support
         "networkx",  # required to use Pyomo network
         "numpy>=1,<3",