--- a/blaze-markup.cabal
+++ b/blaze-markup.cabal
@@ -63,7 +63,7 @@
     containers       >= 0.3  && < 0.6,
     tasty            >= 1.0  && < 1.1,
     tasty-hunit      >= 0.10 && < 0.11,
-    tasty-quickcheck >= 0.10 && < 0.11,
+    tasty-quickcheck >= 0.9 && < 0.11,
     -- Copied from regular dependencies...
     base          >= 4    && < 4.12,
     blaze-builder >= 0.3  && < 0.5,
