diff --git a/manifest.dhall b/manifest.dhall
index 4581db9fcbbfc5d379dbb595b7fb30048c930056..0b60d31c742ff825382269cc70b953bd77dd9d88 100644
--- a/manifest.dhall
+++ b/manifest.dhall
@@ -71,6 +71,7 @@ in  [ callHackage "Cabal" "3.8.1.0"
     , callHackage "OpenGLRaw" "3.3.4.1"
     , callHackage "PyF" "0.11.1.0"
     , callHackage "aeson" "2.1.0.0"
+    , callHackage "aeson-pretty" "0.8.9"
     , callHackage "aeson-yaml" "1.1.0.1"
     , callHackage "ansi-terminal" "0.11.3"
     , callHackage "apecs" "0.9.4"
diff --git a/overlay.nix b/overlay.nix
index f81fad9072fc5ac1e1344ebbeb72de068aeea777..149eadf02165cadcd470d8afb7aeadf6b29ed3d0 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -25,6 +25,8 @@ final: prev: with pkgs.haskell.lib; {
 
     aeson = prev.callPackage (./pkgs/aeson.nix) { };
 
+    aeson-pretty = prev.callPackage (./pkgs/aeson-pretty.nix) { };
+
     aeson-yaml = prev.callPackage (./pkgs/aeson-yaml.nix) { };
 
     ansi-terminal = prev.callPackage (./pkgs/ansi-terminal.nix) { };
diff --git a/pkgs/aeson-pretty.nix b/pkgs/aeson-pretty.nix
new file mode 100644
index 0000000000000000000000000000000000000000..19158ce4aa5be546040af26425c5fc6128fb5ea9
--- /dev/null
+++ b/pkgs/aeson-pretty.nix
@@ -0,0 +1,27 @@
+{ mkDerivation, aeson, attoparsec, base, base-compat, bytestring
+, cmdargs, lib, scientific, text, unordered-containers, vector
+}:
+mkDerivation {
+  pname = "aeson-pretty";
+  version = "0.8.9";
+  sha256 = "5dbc4f451dfa1e667b2c6ec5170714fed1905dc9cae6a1134b3376f355fa2a08";
+  revision = "2";
+  editedCabalFile = "1895w56jl4c06wfhv5zf8ayqpzkxgva2rz5xxz8fvfdiza781cgp";
+  isLibrary = true;
+  isExecutable = true;
+  libraryHaskellDepends = [
+    aeson base base-compat bytestring scientific text
+    unordered-containers vector
+  ];
+  executableHaskellDepends = [
+    aeson attoparsec base bytestring cmdargs
+  ];
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  hyperlinkSource = false;
+  homepage = "http://github.com/informatikr/aeson-pretty";
+  description = "JSON pretty-printing library and command-line tool";
+  license = lib.licenses.bsd3;
+  mainProgram = "aeson-pretty";
+}
\ No newline at end of file