diff --git a/default.nix b/default.nix
index 62e00f7..5d909a6 100644
--- a/default.nix
+++ b/default.nix
@@ -88,7 +88,9 @@
       wrapProgram $out/bin/harmony \
         --prefix PATH : ${lib.makeBinPath [nodeDependencies git "$out"]} \
         --prefix NODE_PATH : ${nodeDependencies}/lib/node_modules
+    '';
 
+    postFixup = ''
       installShellCompletion --cmd harmony \
         --bash <($out/bin/harmony --bash-completion-script) \
         --zsh <($out/bin/harmony --zsh-completion-script) \
diff --git a/flake.lock b/flake.lock
index e0e6a6a..8191133 100644
--- a/flake.lock
+++ b/flake.lock
@@ -9,11 +9,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1715198765,
-        "narHash": "sha256-q2oTMen8E1YUbNyU4chPOj728/YR0RzdpN+bNjZX2QU=",
+        "lastModified": 1719514321,
+        "narHash": "sha256-ys1nJdZ8zB8JlpUbQmnj0hZalg03bEPgQdZN30DhETE=",
         "owner": "kamadorueda",
         "repo": "alejandra",
-        "rev": "bb688cc2c22e43b3cd710eadc0340399c2de3151",
+        "rev": "d7552fef2ccf1bbf0d36b27f6fddb19073f205b7",
         "type": "github"
       },
       "original": {
@@ -62,11 +62,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1719317636,
-        "narHash": "sha256-bu0xbu2Z6DDzA9LGV81yJunIti6r7tjUImeR8orAL/I=",
+        "lastModified": 1721466660,
+        "narHash": "sha256-pFSxgSZqZ3h+5Du0KvEL1ccDZBwu4zvOil1zzrPNb3c=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9c513fc6fb75142f6aec6b7545cb8af2236b80f5",
+        "rev": "6e14bbce7bea6c4efd7adfa88a40dac750d80100",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index df69fa6..e62805b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -32,7 +32,7 @@
       system: let
         harmony = self.packages.${system}.harmony;
       in {
-        tests = harmony.overrideAttrs { doInstallCheck = true; };
+        tests = harmony.overrideAttrs {doInstallCheck = true;};
       }
     );
     devShells = forAllSystems (