diff --git a/src/univers/version_constraint.py b/src/univers/version_constraint.py
index 36ec6d81..2f498973 100644
--- a/src/univers/version_constraint.py
+++ b/src/univers/version_constraint.py
@@ -53,7 +53,7 @@ def operator_star(a, b):
 
 
 @total_ordering
-@attr.s(frozen=True, repr=True, str=False, order=False, eq=True, hash=True)
+@attr.s(frozen=True, repr=True, str=False, order=False, eq=False, hash=True)
 class VersionConstraint:
     """
     Represent a single constraint composed of a comparator and a version.
diff --git a/src/univers/version_range.py b/src/univers/version_range.py
index 69f84f24..33c52b3f 100644
--- a/src/univers/version_range.py
+++ b/src/univers/version_range.py
@@ -39,7 +39,7 @@ class InvalidVersionRange(Exception):
 }
 
 
-@attr.s(frozen=True, order=False, eq=True, hash=True)
+@attr.s(frozen=True, order=False, eq=False, hash=True)
 class VersionRange:
     """
     Base version range class. Subclasses must provide implement.