diff --git a/Cabal-QuickCheck/Cabal-QuickCheck.cabal b/Cabal-QuickCheck/Cabal-QuickCheck.cabal
index 0fbccd53d91..ef9eaf2becb 100644
--- a/Cabal-QuickCheck/Cabal-QuickCheck.cabal
+++ b/Cabal-QuickCheck/Cabal-QuickCheck.cabal
@@ -16,7 +16,7 @@ library
     , bytestring
     , Cabal         ^>=3.15.0.0
     , Cabal-syntax  ^>=3.15.0.0
-    , QuickCheck    ^>=2.13.2 || ^>=2.14
+    , QuickCheck    >= 2.13.2 && < 2.17
 
   exposed-modules:
     Test.QuickCheck.GenericArbitrary
diff --git a/Cabal-hooks/Cabal-hooks.cabal b/Cabal-hooks/Cabal-hooks.cabal
index 4e0c4791a64..e6921c83633 100644
--- a/Cabal-hooks/Cabal-hooks.cabal
+++ b/Cabal-hooks/Cabal-hooks.cabal
@@ -1,4 +1,4 @@
-cabal-version: 3.4
+cabal-version: 3.6
 name:          Cabal-hooks
 version:       3.16
 copyright:     2023, Cabal Development Team
diff --git a/Cabal-syntax/Cabal-syntax.cabal b/Cabal-syntax/Cabal-syntax.cabal
index 825360bab97..858e9116271 100644
--- a/Cabal-syntax/Cabal-syntax.cabal
+++ b/Cabal-syntax/Cabal-syntax.cabal
@@ -1,4 +1,4 @@
-cabal-version: 3.4
+cabal-version: 3.6
 name:          Cabal-syntax
 version:       3.15.0.0
 copyright:     2003-2024, Cabal Development Team (see AUTHORS file)
diff --git a/Cabal/Cabal.cabal b/Cabal/Cabal.cabal
index 793c1783bc4..06152f842d1 100644
--- a/Cabal/Cabal.cabal
+++ b/Cabal/Cabal.cabal
@@ -1,4 +1,4 @@
-cabal-version: 3.4
+cabal-version: 3.6
 name:          Cabal
 version:       3.15.0.0
 copyright:     2003-2024, Cabal Development Team (see AUTHORS file)
diff --git a/cabal-install-solver/cabal-install-solver.cabal b/cabal-install-solver/cabal-install-solver.cabal
index 4547b74fb14..3121bd5e7fd 100644
--- a/cabal-install-solver/cabal-install-solver.cabal
+++ b/cabal-install-solver/cabal-install-solver.cabal
@@ -1,4 +1,4 @@
-cabal-version: 3.4
+cabal-version: 3.6
 name:          cabal-install-solver
 version:       3.15.0.0
 synopsis:      The solver component of cabal-install
diff --git a/cabal-install/cabal-install.cabal b/cabal-install/cabal-install.cabal
index bc56e428dd8..3ede9740e36 100644
--- a/cabal-install/cabal-install.cabal
+++ b/cabal-install/cabal-install.cabal
@@ -1,4 +1,4 @@
-Cabal-Version:      3.4
+Cabal-Version:      3.6
 
 Name:               cabal-install
 Version:            3.15.0.0
@@ -376,7 +376,7 @@ test-suite unit-tests
       , tasty-expected-failure
       , tasty-hunit >= 0.10
       , tree-diff
-      , QuickCheck >= 2.14.3 && <2.16
+      , QuickCheck >= 2.14.3 && <2.17
 
 -- Tests to run with a limited stack and heap size
 -- The test suite name must be keep short cause a longer one
@@ -465,5 +465,5 @@ test-suite long-tests
     , tasty-expected-failure
     , tasty-hunit >= 0.10
     , tasty-quickcheck <0.12
-    , QuickCheck >= 2.14 && <2.16
+    , QuickCheck >= 2.14 && <2.17
     , pretty-show >= 1.6.15