diff --git a/manifest.dhall b/manifest.dhall
index 03c5b635175b4dc42adf012bc35bb0a9c4ef34e7..f9ef5cab6f12263b044d1141bf8a5e456a1d2252 100644
--- a/manifest.dhall
+++ b/manifest.dhall
@@ -388,6 +388,7 @@ in  [ callHackage "Cabal" "3.8.1.0"
     , callHackage "monad-control" "1.0.3.1"
     , callHackage "monad-logger" "0.3.37"
     , callHackage "monad-time" "0.4.0.0"
+    , callHackage "monad-par-extras" "0.3.3"
     , callHackage "monad-par" "0.3.5"
     , callHackage "monoid-subclasses" "1.1.3"
     , callHackage "mono-traversable" "1.0.15.3"
diff --git a/overlay.nix b/overlay.nix
index aa310e588873c53edae3f3e208e9a22403a1472f..834c6ca08dc5d8c32f4768f7fa21d4b7ecc67813 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -503,6 +503,8 @@ final: prev: with pkgs.haskell.lib; {
 
   monad-par = prev.callPackage (./pkgs/monad-par.nix) { };
 
+  monad-par-extras = prev.callPackage (./pkgs/monad-par-extras.nix) { };
+
   monad-time = prev.callPackage (./pkgs/monad-time.nix) { };
 
   mono-traversable = prev.callPackage (./pkgs/mono-traversable.nix) { };
diff --git a/pkgs/monad-par-extras.nix b/pkgs/monad-par-extras.nix
new file mode 100644
index 0000000000000000000000000000000000000000..1b8c2b86ff3a556960a93196947a19183b3b5d92
--- /dev/null
+++ b/pkgs/monad-par-extras.nix
@@ -0,0 +1,38 @@
+{ mkDerivation
+, abstract-par
+, base
+, cereal
+, deepseq
+, lib
+, mtl
+, random
+, transformers
+}:
+mkDerivation {
+  pname = "monad-par-extras";
+  version = "0.3.3";
+  sha256 = "e21e33190bc248afa4ae467287ac37d24037ef3de6050c44fd85b52f4d5b842e";
+  isLibrary = true;
+  isExecutable = false;
+  enableSeparateDataOutput = false;
+  libraryHaskellDepends = [
+    abstract-par
+    base
+    cereal
+    deepseq
+    mtl
+    random
+    transformers
+  ];
+  enableLibraryProfiling = false;
+  enableExecutableProfiling = false;
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  doBenchmark = false;
+  hyperlinkSource = false;
+  homepage = "https://github.com/simonmar/monad-par";
+  description = "Combinators and extra features for Par monads";
+  license = lib.licenses.bsd3;
+  broken = false;
+}