diff --git a/pkgs/development/libraries/haskell/text/1.2.0.0.nix b/pkgs/development/libraries/haskell/text/1.2.0.0.nix
new file mode 100644
index 00000000000..c588c65ba94
--- /dev/null
+++ b/pkgs/development/libraries/haskell/text/1.2.0.0.nix
@@ -0,0 +1,23 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, deepseq, HUnit, QuickCheck, random, testFramework
+, testFrameworkHunit, testFrameworkQuickcheck2
+}:
+
+cabal.mkDerivation (self: {
+  pname = "text";
+  version = "1.2.0.0";
+  sha256 = "0c681yaqq68imj77qzy0j4iag8q90mhnnaalfwc08nzv8cr6c8z6";
+  buildDepends = [ deepseq ];
+  testDepends = [
+    deepseq HUnit QuickCheck random testFramework testFrameworkHunit
+    testFrameworkQuickcheck2
+  ];
+  doCheck = false;
+  meta = {
+    homepage = "https://github.com/bos/text";
+    description = "An efficient packed Unicode text type";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 2c405429eb8..f4ec20de322 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -2615,7 +2615,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
   text_0_11_2_3 = callPackage ../development/libraries/haskell/text/0.11.2.3.nix {};
   text_0_11_3_1 = callPackage ../development/libraries/haskell/text/0.11.3.1.nix {};
   text_1_1_1_3 = callPackage ../development/libraries/haskell/text/1.1.1.3.nix {};
-  text = self.text_1_1_1_3;
+  text_1_2_0_0 = callPackage ../development/libraries/haskell/text/1.2.0.0.nix {};
+  text = self.text_1_2_0_0;
 
   textFormat = callPackage ../development/libraries/haskell/text-format {};