diff --git a/manifest.dhall b/manifest.dhall
index 06bbd3d8e8a4e89e6195eaf0635e67ba75f8d80d..68f9b6b11d2c8f8a4fca9e69147f4a6b71ccd43a 100644
--- a/manifest.dhall
+++ b/manifest.dhall
@@ -171,6 +171,7 @@ in  [ callHackage "Cabal" "3.8.1.0"
     , callHackage "genvalidity-scientific" "1.0.0.0"
     , callHackage "genvalidity-sydtest" "1.0.0.0"
     , callHackage "genvalidity-sydtest-aeson" "1.0.0.0"
+    , callHackage "genvalidity-sydtest-hashable" "1.0.0.0"
     , callHackage "genvalidity-text" "1.0.0.1"
     , callHackage "genvalidity-unordered-containers" "1.0.0.0"
     , callHackage "genvalidity-vector" "1.0.0.0"
diff --git a/overlay.nix b/overlay.nix
index b2525348c07eac154b99bb76595cb4891347fd5b..ab4b7328bf5516d40b76b2c3aa8035dea933ee86 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -177,6 +177,8 @@ final: prev: with pkgs.haskell.lib; {
 
     genvalidity-sydtest-aeson = prev.callPackage (./pkgs/genvalidity-sydtest-aeson.nix) { };
 
+    genvalidity-sydtest-hashable = prev.callPackage (./pkgs/genvalidity-sydtest-hashable.nix) { };
+
     genvalidity-text = prev.callPackage (./pkgs/genvalidity-text.nix) { };
 
     genvalidity-unordered-containers = prev.callPackage (./pkgs/genvalidity-unordered-containers.nix) { };
diff --git a/pkgs/genvalidity-sydtest-hashable.nix b/pkgs/genvalidity-sydtest-hashable.nix
new file mode 100644
index 0000000000000000000000000000000000000000..3c3c0fe320eaa55bd1db5a5e268c6656504a70b3
--- /dev/null
+++ b/pkgs/genvalidity-sydtest-hashable.nix
@@ -0,0 +1,24 @@
+{ mkDerivation, base, genvalidity, genvalidity-sydtest, hashable
+, lib, QuickCheck, sydtest, sydtest-discover, validity
+}:
+mkDerivation {
+  pname = "genvalidity-sydtest-hashable";
+  version = "1.0.0.0";
+  sha256 = "5f4442eb5902c86d72b8340152069d3c3cdb768d8eee0d81e469a650ad178814";
+  libraryHaskellDepends = [
+    base genvalidity genvalidity-sydtest hashable QuickCheck sydtest
+    validity
+  ];
+  testHaskellDepends = [
+    base genvalidity genvalidity-sydtest hashable QuickCheck sydtest
+    validity
+  ];
+  testToolDepends = [ sydtest-discover ];
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  hyperlinkSource = false;
+  homepage = "https://github.com/NorfairKing/validity#readme";
+  description = "Standard spec's for Hashable instances for sydtest";
+  license = lib.licenses.mit;
+}
\ No newline at end of file