diff --git a/pkgs/tools/package-management/cabal-install/1.18.0.2.nix b/pkgs/tools/package-management/cabal-install/1.18.0.3.nix
similarity index 83%
rename from pkgs/tools/package-management/cabal-install/1.18.0.2.nix
rename to pkgs/tools/package-management/cabal-install/1.18.0.3.nix
index 3c1c6ddd133d..041cc471cab5 100644
--- a/pkgs/tools/package-management/cabal-install/1.18.0.2.nix
+++ b/pkgs/tools/package-management/cabal-install/1.18.0.3.nix
@@ -5,8 +5,8 @@
 
 cabal.mkDerivation (self: {
   pname = "cabal-install";
-  version = "1.18.0.2";
-  sha256 = "0ah9yzp486p3cvs9b7nid0jmf0a56fg65s3jx2r8lb84pi50d92c";
+  version = "1.18.0.3";
+  sha256 = "0h01mz6p4fwl8h6k2ybrlp598f0j3n2zasrr63fy0vjbjibmgf41";
   isLibrary = false;
   isExecutable = true;
   buildDepends = [
@@ -20,9 +20,6 @@ cabal.mkDerivation (self: {
     mkdir $out/etc
     mv bash-completion $out/etc/bash_completion.d
   '';
-  patchPhase = ''
-    sed -i -e 's|array .*,|array,|' cabal-install.cabal
-  '';
   meta = {
     homepage = "http://www.haskell.org/cabal/";
     description = "The command-line interface for Cabal and Hackage";
diff --git a/pkgs/top-level/haskell-defaults.nix b/pkgs/top-level/haskell-defaults.nix
index 3034367c39e9..0856bf503780 100644
--- a/pkgs/top-level/haskell-defaults.nix
+++ b/pkgs/top-level/haskell-defaults.nix
@@ -19,8 +19,8 @@
     self : self.haskellPlatformArgs_future self // {
       haskellPlatform = null;
       extensibleExceptions = self.extensibleExceptions_0_1_1_4;
-      cabalInstall_1_18_0_2 = self.cabalInstall_1_18_0_2.override { Cabal = null; };
-      cabalInstall = self.cabalInstall_1_18_0_2.override { Cabal = null; };
+      cabalInstall_1_18_0_3 = self.cabalInstall_1_18_0_3.override { Cabal = null; };
+      cabalInstall = self.cabalInstall_1_18_0_3.override { Cabal = null; };
     };
 
   ghc763Prefs =
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 2bc148d84a3f..dc8655216e04 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -173,7 +173,7 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
     vector       = self.vector_0_10_9_1;
     xhtml        = self.xhtml_3000_2_1;
     zlib         = self.zlib_0_5_4_1;
-    cabalInstall = self.cabalInstall_1_18_0_2;
+    cabalInstall = self.cabalInstall_1_18_0_3;
     alex         = self.alex_3_1_3;
     haddock      = self.haddock_2_13_2_1;
     happy        = self.happy_1_19_3;
@@ -2858,10 +2858,10 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
   cabalInstall_0_10_2 = callPackage ../tools/package-management/cabal-install/0.10.2.nix {};
   cabalInstall_0_14_0 = callPackage ../tools/package-management/cabal-install/0.14.0.nix {};
   cabalInstall_1_16_0_2 = callPackage ../tools/package-management/cabal-install/1.16.0.2.nix {};
-  cabalInstall_1_18_0_2 = callPackage ../tools/package-management/cabal-install/1.18.0.2.nix {
+  cabalInstall_1_18_0_3 = callPackage ../tools/package-management/cabal-install/1.18.0.3.nix {
     Cabal = self.Cabal_1_18_1_3;
   };
-  cabalInstall = self.cabalInstall_1_18_0_2;
+  cabalInstall = self.cabalInstall_1_18_0_3;
 
   gitAnnex = callPackage ../applications/version-management/git-and-tools/git-annex {};