diff --git a/flake.lock b/flake.lock
index d2deeaa040..7c1fd19982 100644
--- a/flake.lock
+++ b/flake.lock
@@ -133,11 +133,11 @@
     "hackage": {
       "flake": false,
       "locked": {
-        "lastModified": 1647047557,
-        "narHash": "sha256-6A7jjz77f53GkvFxqVmeuqqXyDWsU24rUtFtOg68CAg=",
+        "lastModified": 1655687627,
+        "narHash": "sha256-E1uyic0vWHC6gtz2FYtnFE3JWhvmmBj1TU93qoJSxdg=",
         "owner": "input-output-hk",
         "repo": "hackage.nix",
-        "rev": "fc07d4d4f2597334caa96f455cec190bdcc931f4",
+        "rev": "6634069475ef594a8a2be6c33301ba7e59149980",
         "type": "github"
       },
       "original": {
@@ -155,7 +155,9 @@
         "cardano-shell": "cardano-shell",
         "flake-utils": "flake-utils_2",
         "ghc-8.6.5-iohk": "ghc-8.6.5-iohk",
-        "hackage": "hackage",
+        "hackage": [
+          "hackage"
+        ],
         "hpc-coveralls": "hpc-coveralls",
         "nix-tools": "nix-tools",
         "nixpkgs": [
@@ -315,6 +317,7 @@
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
+        "hackage": "hackage",
         "haskellNix": "haskellNix",
         "nixpkgs": "nixpkgs"
       }
diff --git a/flake.nix b/flake.nix
index 5001484ab8..2474dcbf78 100644
--- a/flake.nix
+++ b/flake.nix
@@ -9,7 +9,7 @@
   };
   inputs.haskellNix.inputs.hackage.follows = "hackage";
   inputs.flake-utils.url = "github:numtide/flake-utils";
-  outputs = { self, haskellNix, nixpkgs, flake-utils }:
+  outputs = { self, haskellNix, nixpkgs, flake-utils, ... }:
     let systems = [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ]; in
     flake-utils.lib.eachSystem systems (system:
       let pkgs = haskellNix.legacyPackages.${system}; in