diff --git a/manifest.dhall b/manifest.dhall
index bbb20b9bfc8ec1f83f0924600405f75d5cb6246f..f12a916587a5b763c4cacb4c3795f66c2c05e696 100644
--- a/manifest.dhall
+++ b/manifest.dhall
@@ -261,6 +261,7 @@ in  [ callHackage "Cabal" "3.8.1.0"
     , callHackage "entropy" "0.4.1.10"
     , callHackage "erf" "2.0.0.0"
     , callHackage "exact-pi" "0.5.0.2"
+    , callHackage "extensible-effects" "5.0.0.1"
     , callHackage "extensible-exceptions" "0.1.1.4"
     , callHackage "extra" "1.7.12"
     , callHackage "expiring-cache-map" "0.0.6.1"
diff --git a/overlay.nix b/overlay.nix
index 984c60b5f0b99fbdeccacdbefe48fcf05126963d..86d1817718b2d8973816ea1c626c04d57ffd4cdf 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -337,6 +337,8 @@ self: with pkgs.haskell.lib; {
 
   expiring-cache-map = self.callPackage (./pkgs/expiring-cache-map.nix) { };
 
+  extensible-effects = self.callPackage (./pkgs/extensible-effects.nix) { };
+
   extensible-exceptions = self.callPackage (./pkgs/extensible-exceptions.nix) { };
 
   extra = self.callPackage (./pkgs/extra.nix) { };
diff --git a/pkgs/extensible-effects.nix b/pkgs/extensible-effects.nix
new file mode 100644
index 0000000000000000000000000000000000000000..deeec7cd66241b79c16c8e825f789ee603bb103f
--- /dev/null
+++ b/pkgs/extensible-effects.nix
@@ -0,0 +1,61 @@
+{ mkDerivation
+, base
+, criterion
+, doctest
+, HUnit
+, lib
+, monad-control
+, mtl
+, QuickCheck
+, silently
+, test-framework
+, test-framework-hunit
+, test-framework-quickcheck2
+, test-framework-th
+, transformers-base
+}:
+mkDerivation {
+  pname = "extensible-effects";
+  version = "5.0.0.1";
+  sha256 = "c3b3165893d3738c5ec7ffd0d8c46a7af855b7d3087e159d6da516e78880c039";
+  revision = "1";
+  editedCabalFile = "1ihcxj58a3ca80zfyxgbzjzgps9izy96vnj7h4sk9wwb9khbxl1f";
+  isLibrary = true;
+  isExecutable = false;
+  enableSeparateDataOutput = false;
+  libraryHaskellDepends = [ base monad-control transformers-base ];
+  testHaskellDepends = [
+    base
+    doctest
+    HUnit
+    monad-control
+    mtl
+    QuickCheck
+    silently
+    test-framework
+    test-framework-hunit
+    test-framework-quickcheck2
+    test-framework-th
+  ];
+  benchmarkHaskellDepends = [
+    base
+    criterion
+    HUnit
+    mtl
+    test-framework
+    test-framework-hunit
+    test-framework-quickcheck2
+    test-framework-th
+  ];
+  enableLibraryProfiling = false;
+  enableExecutableProfiling = false;
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  doBenchmark = false;
+  hyperlinkSource = false;
+  homepage = "https://github.com/suhailshergill/extensible-effects";
+  description = "An Alternative to Monad Transformers";
+  license = lib.licenses.mit;
+  broken = false;
+}