diff --git a/parallel.cabal b/parallel.cabal
index 7106986..6d775f5 100644
--- a/parallel.cabal
+++ b/parallel.cabal
@@ -60,7 +60,7 @@ library
     build-depends:
         array      >= 0.3 && < 0.6,
         base       >= 4.3 && < 4.22,
-        containers >= 0.4 && < 0.8,
+        containers >= 0.4 && < 0.9,
         deepseq    >= 1.1 && < 1.6
 
     ghc-options: -Wall