diff --git a/pkgs/development/libraries/haskell/unordered-containers/0.2.0.1.nix b/pkgs/development/libraries/haskell/unordered-containers/0.2.1.0.nix
similarity index 82%
rename from pkgs/development/libraries/haskell/unordered-containers/0.2.0.1.nix
rename to pkgs/development/libraries/haskell/unordered-containers/0.2.1.0.nix
index b80bf8501d81..8682fcd2f6a6 100644
--- a/pkgs/development/libraries/haskell/unordered-containers/0.2.0.1.nix
+++ b/pkgs/development/libraries/haskell/unordered-containers/0.2.1.0.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "unordered-containers";
-  version = "0.2.0.1";
-  sha256 = "16vql5s98w9gfzjngzq0a18d173l67jcrib18fh0bxdibmg9hzql";
+  version = "0.2.1.0";
+  sha256 = "0zk2ip32h6faqa1pfmiw242fdarr63lds4j828ix7qhrjifwiw4p";
   buildDepends = [ deepseq hashable ];
   meta = {
     description = "Efficient hashing-based container types";
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index ce0a29a2f82b..b9723724f7ac 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1388,8 +1388,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
   unixCompat = callPackage ../development/libraries/haskell/unix-compat {};
 
   unorderedContainers_0_1_4_6 = callPackage ../development/libraries/haskell/unordered-containers/0.1.4.6.nix {};
-  unorderedContainers_0_2_0_1 = callPackage ../development/libraries/haskell/unordered-containers/0.2.0.1.nix {};
-  unorderedContainers = self.unorderedContainers_0_2_0_1;
+  unorderedContainers_0_2_1_0 = callPackage ../development/libraries/haskell/unordered-containers/0.2.1.0.nix {};
+  unorderedContainers = self.unorderedContainers_0_2_1_0;
 
   url = callPackage ../development/libraries/haskell/url {};