diff --git a/pkgs/development/libraries/haskell/unordered-containers/0.2.5.0.nix b/pkgs/development/libraries/haskell/unordered-containers/0.2.5.1.nix
similarity index 88%
rename from pkgs/development/libraries/haskell/unordered-containers/0.2.5.0.nix
rename to pkgs/development/libraries/haskell/unordered-containers/0.2.5.1.nix
index 70f00b68d422..07f1b8beb974 100644
--- a/pkgs/development/libraries/haskell/unordered-containers/0.2.5.0.nix
+++ b/pkgs/development/libraries/haskell/unordered-containers/0.2.5.1.nix
@@ -6,8 +6,8 @@
 
 cabal.mkDerivation (self: {
   pname = "unordered-containers";
-  version = "0.2.5.0";
-  sha256 = "0y85a9zg77h05c5ajchvfazg84ksvyi92r6bbmh09qzlf7mlb4bj";
+  version = "0.2.5.1";
+  sha256 = "06l1xv7vhpxly75saxdrbc6p2zlgz1az278arfkz4rgawfnphn3f";
   buildDepends = [ deepseq hashable ];
   testDepends = [
     ChasingBottoms hashable HUnit QuickCheck testFramework
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 79064fdf5d21..0384d3c78c0b 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -2676,8 +2676,8 @@ 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_0_2_5_0 = callPackage ../development/libraries/haskell/unordered-containers/0.2.5.0.nix {};
-  unorderedContainers = self.unorderedContainers_0_2_5_0;
+  unorderedContainers_0_2_5_1 = callPackage ../development/libraries/haskell/unordered-containers/0.2.5.1.nix {};
+  unorderedContainers = self.unorderedContainers_0_2_5_1;
 
   uri = callPackage ../development/libraries/haskell/uri {};