diff --git a/manifest.dhall b/manifest.dhall
index 47afad9c833d0209d4b8eb5ee68a271ef0d79d89..316273c3ed765a06070fb977b0642163cdb40488 100644
--- a/manifest.dhall
+++ b/manifest.dhall
@@ -161,6 +161,7 @@ in  [ callHackage "Cabal" "3.8.1.0"
     , callHackage "genvalidity" "1.1.0.0"
     , callHackage "genvalidity-aeson" "1.0.0.1"
     , callHackage "genvalidity-bytestring" "1.0.0.1"
+    , callHackage "genvalidity-case-insensitive" "0.0.0.1"
     , callHackage "genvalidity-hspec" "1.0.0.2"
     , callHackage "genvalidity-scientific" "1.0.0.0"
     , callHackage "genvalidity-sydtest-aeson" "1.0.0.0"
diff --git a/overlay.nix b/overlay.nix
index aa675b5c86389368e1398d24fe1540024b3a4b97..ac484b9ab37b1e4151a9d3ac6a2464828645d35e 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -157,6 +157,8 @@ final: prev: with pkgs.haskell.lib; {
 
     genvalidity-bytestring = prev.callPackage (./pkgs/genvalidity-bytestring.nix) { };
 
+    genvalidity-case-insensitive = prev.callPackage (./pkgs/genvalidity-case-insensitive.nix) { };
+
     genvalidity-hspec = prev.callPackage (./pkgs/genvalidity-hspec.nix) { };
 
     genvalidity-scientific = prev.callPackage (./pkgs/genvalidity-scientific.nix) { };
diff --git a/pkgs/genvalidity-case-insensitive.nix b/pkgs/genvalidity-case-insensitive.nix
new file mode 100644
index 0000000000000000000000000000000000000000..b2d51ce2391654872659ffcd0c3823b8e4d9bb38
--- /dev/null
+++ b/pkgs/genvalidity-case-insensitive.nix
@@ -0,0 +1,26 @@
+{ mkDerivation, base, case-insensitive, criterion, genvalidity
+, genvalidity-criterion, genvalidity-hspec, hspec, lib, QuickCheck
+, validity-case-insensitive
+}:
+mkDerivation {
+  pname = "genvalidity-case-insensitive";
+  version = "0.0.0.1";
+  sha256 = "40e26a8a2f53ae592f87d85bcffce28a1c8af2ffdb977ac88d5ed7df99970aa9";
+  libraryHaskellDepends = [
+    base case-insensitive genvalidity validity-case-insensitive
+  ];
+  testHaskellDepends = [
+    base case-insensitive genvalidity-hspec hspec
+  ];
+  benchmarkHaskellDepends = [
+    base case-insensitive criterion genvalidity genvalidity-criterion
+    QuickCheck
+  ];
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  hyperlinkSource = false;
+  homepage = "https://github.com/NorfairKing/validity#readme";
+  description = "GenValidity support for case-insensitive";
+  license = lib.licenses.mit;
+}
\ No newline at end of file