diff --git a/manifest.dhall b/manifest.dhall
index 460e9848ee53d0d323926bfb39d60333b487a20c..807114815c02aad66ae6a403299a0aa5775a9f96 100644
--- a/manifest.dhall
+++ b/manifest.dhall
@@ -504,6 +504,7 @@ in  [ callHackage "Cabal" "3.8.1.0"
     , callHackage "unicode-data" "0.4.0"
     , callHackage "unicode-transforms" "0.4.0.1"
     , callHackage "universe-base" "1.1.3"
+    , callHackage "unliftio-core" "0.2.0.1"
     , callHackage "unordered-containers" "0.2.19.1"
     , callHackage "validity" "0.12.0.1"
     , callHackage "validity-aeson" "0.2.0.5"
diff --git a/overlay.nix b/overlay.nix
index 186ab9d5c15ea913a4709f61f48bf14c19de92f1..f1e6ff350e5fed7f60867434c44f48302f9beae7 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -625,6 +625,8 @@ final: prev: with pkgs.haskell.lib; {
 
   universe-base = prev.callPackage (./pkgs/universe-base.nix) { };
 
+  unliftio-core = prev.callPackage (./pkgs/unliftio-core.nix) { };
+
   unordered-containers = prev.callPackage (./pkgs/unordered-containers.nix) { };
 
   validity = prev.callPackage (./pkgs/validity.nix) { };
diff --git a/pkgs/unliftio-core.nix b/pkgs/unliftio-core.nix
new file mode 100644
index 0000000000000000000000000000000000000000..fca2ef94f50ed04205fe8a3f66f2d0e37ecc2611
--- /dev/null
+++ b/pkgs/unliftio-core.nix
@@ -0,0 +1,23 @@
+{ mkDerivation, base, lib, transformers }:
+mkDerivation {
+  pname = "unliftio-core";
+  version = "0.2.0.1";
+  sha256 = "919f0d1297ea2f5373118553c1df2a9405d8b9e31a8307e829da67d4953c299a";
+  revision = "2";
+  editedCabalFile = "1xx9nmxxg87nhwxgbmmw0xbrppnjc23ppyryar04i3njyg9wvazr";
+  isLibrary = true;
+  isExecutable = false;
+  enableSeparateDataOutput = false;
+  libraryHaskellDepends = [ base transformers ];
+  enableLibraryProfiling = false;
+  enableExecutableProfiling = false;
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  doBenchmark = false;
+  hyperlinkSource = false;
+  homepage = "https://github.com/fpco/unliftio/tree/master/unliftio-core#readme";
+  description = "The MonadUnliftIO typeclass for unlifting monads to IO";
+  license = lib.licenses.mit;
+  broken = false;
+}