diff --git a/hyphenation.cabal b/hyphenation.cabal
index 78efca1..86f7daf 100644
--- a/hyphenation.cabal
+++ b/hyphenation.cabal
@@ -65,7 +65,7 @@ library
   build-depends:
     base                 >= 4       && < 5,
     bytestring           >= 0.9     && < 0.13,
-    containers           >= 0.3.0.0 && < 0.7,
+    containers           >= 0.3.0.0 && < 0.8,
     unordered-containers >= 0.2.1   && < 0.3,
     zlib                 >= 0.5     && < 0.7,
     text