diff --git a/test/Model/TypesSpec.hs b/test/Model/TypesSpec.hs
index 24f5bc4d2..ed98ad9b5 100644
--- a/test/Model/TypesSpec.hs
+++ b/test/Model/TypesSpec.hs
@@ -363,7 +363,7 @@ instance Arbitrary SemVer.Version where
     <*> fmap getNonNegative arbitrary
     <*> fmap getNonNegative arbitrary
     <*> arbitrary
-    <*> arbitrary
+    <*> mempty      -- Ord SemVer.Version ignores Metadata, so the Ord properties don't hold
 
 instance Arbitrary SemVer.Identifier where
   arbitrary = -- oneof