diff --git a/manifest.dhall b/manifest.dhall
index 84bab9b5dacf6e1edc23eea5bae696a86e625438..56803f686e3f47a12ed4f2e48437a4054eb7a886 100644
--- a/manifest.dhall
+++ b/manifest.dhall
@@ -281,6 +281,7 @@ in  [ callHackage "Cabal" "3.8.1.0"
         (Some "69e8ae036b047fae105c1fe990e175a7572a3eba")
         (Some "genvalidity-dirforest")
     , callHackage "genvalidity-hspec" "1.0.0.2"
+    , callHackage "genvalidity-hspec-aeson" "1.0.0.0"
     , callHackage "genvalidity-hspec-optics" "1.0.0.0"
     , callHackage "genvalidity-path" "1.0.0.1"
     , callHackage "genvalidity-persistent" "1.0.0.1"
diff --git a/overlay.nix b/overlay.nix
index c3a8298bb801b63a9194ec5862e6b519c0347013..37fe341a3762c24598c7e0239fb8bcff52212f63 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -367,6 +367,8 @@ self: with pkgs.haskell.lib; {
 
   genvalidity-hspec = self.callPackage (./pkgs/genvalidity-hspec.nix) { };
 
+  genvalidity-hspec-aeson = self.callPackage (./pkgs/genvalidity-hspec-aeson.nix) { };
+
   genvalidity-hspec-optics = self.callPackage (./pkgs/genvalidity-hspec-optics.nix) { };
 
   genvalidity-path = self.callPackage (./pkgs/genvalidity-path.nix) { };
diff --git a/pkgs/genvalidity-hspec-aeson.nix b/pkgs/genvalidity-hspec-aeson.nix
new file mode 100644
index 0000000000000000000000000000000000000000..7abc8bb53e634a64d79289176440f56cc5f1b366
--- /dev/null
+++ b/pkgs/genvalidity-hspec-aeson.nix
@@ -0,0 +1,58 @@
+{ mkDerivation
+, aeson
+, base
+, bytestring
+, deepseq
+, genvalidity
+, genvalidity-aeson
+, genvalidity-hspec
+, genvalidity-property
+, genvalidity-text
+, hspec
+, lib
+, QuickCheck
+, text
+, validity
+}:
+mkDerivation {
+  pname = "genvalidity-hspec-aeson";
+  version = "1.0.0.0";
+  sha256 = "06ca1d32196c5bb837c06f88f4df67fff60beb6a200d91579fdc812fcc23eaa1";
+  isLibrary = true;
+  isExecutable = false;
+  enableSeparateDataOutput = false;
+  libraryHaskellDepends = [
+    aeson
+    base
+    bytestring
+    deepseq
+    genvalidity
+    genvalidity-hspec
+    hspec
+    QuickCheck
+  ];
+  testHaskellDepends = [
+    aeson
+    base
+    genvalidity
+    genvalidity-aeson
+    genvalidity-hspec
+    genvalidity-property
+    genvalidity-text
+    hspec
+    QuickCheck
+    text
+    validity
+  ];
+  enableLibraryProfiling = false;
+  enableExecutableProfiling = false;
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  doBenchmark = false;
+  hyperlinkSource = false;
+  homepage = "http://cs-syd.eu";
+  description = "Standard spec's for aeson-related instances";
+  license = lib.licenses.mit;
+  broken = false;
+}