diff --git a/mordred/MolecularDistanceEdge.py b/mordred/MolecularDistanceEdge.py
index da4d235..2452606 100644
--- a/mordred/MolecularDistanceEdge.py
+++ b/mordred/MolecularDistanceEdge.py
@@ -1,6 +1,6 @@
 from six import string_types, integer_types
 import warnings
-from numpy import prod
+from numpy import prod, longdouble
 
 from ._base import Descriptor
 from ._graph_matrix import Valence, DistanceMatrix
@@ -92,7 +92,7 @@ def calculate(self, D, V):
                     message="overflow encountered in reduce",
                     category=RuntimeWarning,
                 )
-                dx = prod(Dv) ** (1.0 / (2.0 * n))
+                dx = prod(Dv, dtype=longdouble) ** (1.0 / (2.0 * n))
 
         return n / (dx**2)
 
diff --git a/pyproject.toml b/pyproject.toml
index 81f4d5b..9f42653 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "mordredcommunity"
-version = "2.0.4"
+version = "2.0.5"
 authors = [{ name = "Jackson Burns", email = "jwburns@mit.edu" }]
 license = { text = "BSD-3-Clause" }
 description = "Community-Maintained Version of mordred"