diff --git a/horizon.dhall b/horizon.dhall
index 45ba8a39fc7e575f9d46c709c3e86cf76a35ce7d..b02e688b96c43f95cc54854c9f3a82cf0949051a 100644
--- a/horizon.dhall
+++ b/horizon.dhall
@@ -228,6 +228,7 @@ let otherLibraries =
       , H.callHackage "hedgehog-quickcheck" "0.1.1"
       , H.callHackage "heredoc" "0.2.0.0"
       , H.callHackage "hex-text" "0.1.0.7"
+      , H.callHackage "hspec-golden-aeson" "0.9.0.0"
       , H.callHackage "hspec-golden" "0.2.0.0"
       , H.callHackage "hsyslog" "5.0.2"
       , H.callHackage "html-entities" "1.1.4.6"
diff --git a/overlay.nix b/overlay.nix
index 0a0b1be2a945fda9e372343a59472d98d7de6932..6e12a52611d2f3b04ddb1df7bf017000e44cb2d5 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -179,6 +179,8 @@ final: prev: with pkgs.haskell.lib; {
 
   hspec-golden = final.callPackage (./pkgs/hspec-golden.nix) { };
 
+  hspec-golden-aeson = final.callPackage (./pkgs/hspec-golden-aeson.nix) { };
+
   hsyslog = final.callPackage (./pkgs/hsyslog.nix) { };
 
   html-entities = final.callPackage (./pkgs/html-entities.nix) { };
diff --git a/pkgs/hspec-golden-aeson.nix b/pkgs/hspec-golden-aeson.nix
new file mode 100644
index 0000000000000000000000000000000000000000..8df558b854f9108ae0ec341ba1bbec91d44a7ea8
--- /dev/null
+++ b/pkgs/hspec-golden-aeson.nix
@@ -0,0 +1,61 @@
+{ mkDerivation
+, HUnit
+, QuickCheck
+, aeson
+, aeson-pretty
+, base
+, bytestring
+, directory
+, filepath
+, hspec
+, hspec-core
+, lib
+, quickcheck-arbitrary-adt
+, random
+, silently
+, transformers
+}:
+mkDerivation {
+  pname = "hspec-golden-aeson";
+  version = "0.9.0.0";
+  sha256 = "04b1510fd21af7ccefbb753ffeb6474eed055120a27ef7fcbcc22a63bb0945d6";
+  isLibrary = true;
+  isExecutable = false;
+  enableSeparateDataOutput = false;
+  libraryHaskellDepends = [
+    aeson
+    aeson-pretty
+    base
+    bytestring
+    directory
+    filepath
+    hspec
+    HUnit
+    QuickCheck
+    quickcheck-arbitrary-adt
+    random
+    transformers
+  ];
+  testHaskellDepends = [
+    aeson
+    base
+    directory
+    hspec
+    hspec-core
+    QuickCheck
+    quickcheck-arbitrary-adt
+    silently
+    transformers
+  ];
+  enableLibraryProfiling = true;
+  enableExecutableProfiling = true;
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  doBenchmark = false;
+  hyperlinkSource = false;
+  homepage = "https://github.com/plow-technologies/hspec-golden-aeson#readme";
+  description = "Use tests to monitor changes in Aeson serialization";
+  license = lib.licenses.bsd3;
+  broken = false;
+}