diff --git a/Cabal-QuickCheck/Cabal-QuickCheck.cabal b/Cabal-QuickCheck/Cabal-QuickCheck.cabal
index 56d6fa10675..f83f8091358 100644
--- a/Cabal-QuickCheck/Cabal-QuickCheck.cabal
+++ b/Cabal-QuickCheck/Cabal-QuickCheck.cabal
@@ -16,7 +16,7 @@ library
     , bytestring
     , Cabal         ^>=3.17.0.0
     , Cabal-syntax  ^>=3.17.0.0
-    , QuickCheck    >= 2.13.2 && < 2.17
+    , QuickCheck    >= 2.13.2 && < 2.18
 
   exposed-modules:
     Test.QuickCheck.GenericArbitrary
diff --git a/cabal-install/cabal-install.cabal b/cabal-install/cabal-install.cabal
index 2905c7f9ffd..b917cae348e 100644
--- a/cabal-install/cabal-install.cabal
+++ b/cabal-install/cabal-install.cabal
@@ -391,7 +391,7 @@ test-suite unit-tests
       , tasty-expected-failure
       , tasty-hunit >= 0.10
       , tree-diff
-      , QuickCheck >= 2.14.3 && <2.17
+      , QuickCheck >= 2.14.3 && <2.18
 
 -- Tests for the project file parser
 test-suite parser-tests
@@ -500,5 +500,5 @@ test-suite long-tests
     , tasty-expected-failure
     , tasty-hunit >= 0.10
     , tasty-quickcheck <0.12
-    , QuickCheck >= 2.14 && <2.17
+    , QuickCheck >= 2.14 && <2.18
     , pretty-show >= 1.6.15