diff --git a/pkgs/tools/package-management/cabal-install/1.20.0.1.nix b/pkgs/tools/package-management/cabal-install/1.20.0.2.nix
similarity index 90%
rename from pkgs/tools/package-management/cabal-install/1.20.0.1.nix
rename to pkgs/tools/package-management/cabal-install/1.20.0.2.nix
index d0db9354ae05..dba92ab9321b 100644
--- a/pkgs/tools/package-management/cabal-install/1.20.0.1.nix
+++ b/pkgs/tools/package-management/cabal-install/1.20.0.2.nix
@@ -5,8 +5,8 @@
 
 cabal.mkDerivation (self: {
   pname = "cabal-install";
-  version = "1.20.0.1";
-  sha256 = "14zrsbjr7kgrnjd5hxczll4j39vwj95drlw73gad2div2954dqxi";
+  version = "1.20.0.2";
+  sha256 = "1nsc8qklhlg2xpaj7k158gg45rlrp7mn15zyfsgjpaqf3rjm9dl4";
   isLibrary = false;
   isExecutable = true;
   buildDepends = [
diff --git a/pkgs/top-level/haskell-defaults.nix b/pkgs/top-level/haskell-defaults.nix
index 708fe3271a6c..ad0da2265421 100644
--- a/pkgs/top-level/haskell-defaults.nix
+++ b/pkgs/top-level/haskell-defaults.nix
@@ -16,11 +16,11 @@
 
   ghcHEADPrefs = self : super : super // {
     mtl = self.mtl_2_1_3_1;
-    cabalInstall_1_20_0_1 = super.cabalInstall_1_20_0_1.override { Cabal = null; };
+    cabalInstall_1_20_0_2 = super.cabalInstall_1_20_0_2.override { Cabal = null; };
   };
 
   ghc782Prefs = self : super : ghcHEADPrefs self super // {
-    cabalInstall_1_20_0_1 = super.cabalInstall_1_20_0_1.override { Cabal = self.Cabal_1_20_0_0; };
+    cabalInstall_1_20_0_2 = super.cabalInstall_1_20_0_2.override { Cabal = self.Cabal_1_20_0_0; };
     codex = super.codex.override { hackageDb = super.hackageDb.override { Cabal = self.Cabal_1_20_0_0; }; };
   };
 
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 36b22b935ce1..2f24f206dfb9 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -2689,8 +2689,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
   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 { Cabal = self.Cabal_1_16_0_3; };
   cabalInstall_1_18_0_3 = callPackage ../tools/package-management/cabal-install/1.18.0.3.nix { Cabal = self.Cabal_1_18_1_3; };
-  cabalInstall_1_20_0_1 = callPackage ../tools/package-management/cabal-install/1.20.0.1.nix { Cabal = self.Cabal_1_20_0_0; };
-  cabalInstall = self.cabalInstall_1_20_0_1;
+  cabalInstall_1_20_0_2 = callPackage ../tools/package-management/cabal-install/1.20.0.2.nix { Cabal = self.Cabal_1_20_0_0; };
+  cabalInstall = self.cabalInstall_1_20_0_2;
 
   codex = callPackage ../development/tools/haskell/codex {};