diff --git a/base64-bytestring-type.cabal b/base64-bytestring-type.cabal
index e2f251f..76daa3e 100644
--- a/base64-bytestring-type.cabal
+++ b/base64-bytestring-type.cabal
@@ -77,7 +77,7 @@ library
     , base-compat        >=0.9.3   && <0.16
     , base64-bytestring  >=1.0.0.1 && <1.3
     , hashable           >=1.2.6.1 && <1.6
-    , QuickCheck         >=2.11.3  && <2.17
+    , QuickCheck         >=2.11.3  && <2.19
 
   if !impl(ghc >=8.0)
     build-depends: semigroups >=0.18.5 && <0.21
diff --git a/cabal.project b/cabal.project
index 084cf31..ed5f8b4 100644
--- a/cabal.project
+++ b/cabal.project
@@ -1,15 +1,18 @@
 packages: .
 
+constraints:
+  , QuickCheck >= 2.18
+
 -- cabal-allow-newer
 if impl (ghc >= 9.14)
   allow-newer:
+    , aeson:QuickCheck
     , aeson:containers
     , aeson:template-haskell
     , cborg:base
     , cborg:containers
     , http-api-data:base
     , http-api-data:containers
-    , http-api-data:time-compat
     , http-api-data:uuid-types
     , indexed-traversable:base
     , indexed-traversable:containers
@@ -19,5 +22,4 @@ if impl (ghc >= 9.14)
     , serialise:base
     , serialise:containers
     , these:base
-    , time-compat:base
     , uuid-types:template-haskell