--- a/deferred-folds.cabal
+++ b/deferred-folds.cabal
@@ -44,7 +44,7 @@ library
     containers >=0.5 && <0.7,
     foldl >=1 && <2,
     hashable >=1 && <2,
-    primitive >=0.6.4 && <0.8,
+    primitive >=0.6.4 && <0.9,
     text >=1.2 && <1.3 || >=2.0 && <2.1,
     transformers >=0.5 && <0.7,
     unordered-containers >=0.2 && <0.3,
