diff --git a/pkgs/development/libraries/haskell/unordered-containers/0.2.5.0.nix b/pkgs/development/libraries/haskell/unordered-containers/0.2.5.0.nix
new file mode 100644
index 000000000000..508199bb0a74
--- /dev/null
+++ b/pkgs/development/libraries/haskell/unordered-containers/0.2.5.0.nix
@@ -0,0 +1,21 @@
+{ cabal, ChasingBottoms, deepseq, hashable, HUnit, QuickCheck
+, testFramework, testFrameworkHunit, testFrameworkQuickcheck2
+}:
+
+cabal.mkDerivation (self: {
+  pname = "unordered-containers";
+  version = "0.2.5.0";
+  sha256 = "0y85a9zg77h05c5ajchvfazg84ksvyi92r6bbmh09qzlf7mlb4bj";
+  buildDepends = [ deepseq hashable ];
+  testDepends = [
+    ChasingBottoms hashable HUnit QuickCheck testFramework
+    testFrameworkHunit testFrameworkQuickcheck2
+  ];
+  doCheck = false;
+  meta = {
+    homepage = "https://github.com/tibbe/unordered-containers";
+    description = "Efficient hashing-based container types";
+    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 1c8a80a1afca..8b4eae684c76 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -2433,7 +2433,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   unorderedContainers_0_2_3_0 = callPackage ../development/libraries/haskell/unordered-containers/0.2.3.0.nix {};
   unorderedContainers_0_2_4_0 = callPackage ../development/libraries/haskell/unordered-containers/0.2.4.0.nix {};
-  unorderedContainers = self.unorderedContainers_0_2_4_0;
+  unorderedContainers_0_2_5_0 = callPackage ../development/libraries/haskell/unordered-containers/0.2.5.0.nix {};
+  unorderedContainers = self.unorderedContainers_0_2_5_0;
 
   uri = callPackage ../development/libraries/haskell/uri {};