--- a/integer-conversion.cabal
+++ b/integer-conversion.cabal
@@ -36,7 +36,7 @@ library
   hs-source-dirs:   src
   exposed-modules:  Data.Integer.Conversion
   build-depends:
-    , base        >=4.12.0.0   && <4.21
+    , base        >=4.12.0.0   && <5
     , bytestring  ^>=0.10.8.1 || ^>=0.11.4.0 || ^>=0.12.0.2
     , primitive   ^>=0.9.0.0
     , text        ^>=1.2.3.0  || ^>=2.0.1    || ^>=2.1
@@ -54,9 +54,9 @@ test-suite integer-conversion-tests
 
   -- test dependencies
   build-depends:
-    , QuickCheck        ^>=2.14.3 || ^>=2.15
-    , tasty             ^>=1.4.3  || ^>=1.5
-    , tasty-quickcheck  ^>=0.10.2
+    , QuickCheck        >=2.14.3
+    , tasty             >=1.4.3
+    , tasty-quickcheck  ^>=0.11
 
   other-modules:
     Alternative
