Index: b/lzma.cabal
===================================================================
--- a/lzma.cabal
+++ b/lzma.cabal
@@ -96,8 +96,8 @@ test-suite lzma-tests
   -- additional dependencies that require version bounds
   build-depends:
     , QuickCheck        ^>=2.14.1 || ^>=2.15.0.1
-    , tasty             ^>=1.5
+    , tasty              >=1.4 && <1.6
     , tasty-hunit       ^>=0.10.1
-    , tasty-quickcheck  ^>=0.10.3
+    , tasty-quickcheck  ^>=0.10.2
 
   ghc-options:      -Wall -threaded
