diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index f0a06a71c1e7..d56748ffdc0e 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -20393,11 +20393,6 @@
     github = "peat-psuwit";
     githubId = 6771175;
   };
-  pedohorse = {
-    github = "permahorse";
-    githubId = 13556996;
-    name = "pedohorse";
-  };
   pedrohlc = {
     email = "root@pedrohlc.com";
     github = "PedroHLC";
@@ -20447,6 +20442,11 @@
     github = "peret";
     githubId = 617977;
   };
+  permahorse = {
+    github = "permahorse";
+    githubId = 13556996;
+    name = "permahorse";
+  };
   perstark = {
     email = "perstark.se@gmail.com";
     github = "perstarkse";
diff --git a/pkgs/by-name/ho/houdini/package.nix b/pkgs/by-name/ho/houdini/package.nix
index 7d74e20b19d3..131f56cf4026 100644
--- a/pkgs/by-name/ho/houdini/package.nix
+++ b/pkgs/by-name/ho/houdini/package.nix
@@ -126,7 +126,7 @@ buildFHSEnv {
     maintainers = with lib.maintainers; [
       canndrew
       kwohlfahrt
-      pedohorse
+      permahorse
     ];
   };
 }
diff --git a/pkgs/by-name/ho/houdini/runtime.nix b/pkgs/by-name/ho/houdini/runtime.nix
index e8a161b18108..06ed877f8ca7 100644
--- a/pkgs/by-name/ho/houdini/runtime.nix
+++ b/pkgs/by-name/ho/houdini/runtime.nix
@@ -1,12 +1,12 @@
 { requireFile, callPackage }:
 
 callPackage ./runtime-build.nix rec {
-  version = "21.0.440";
+  version = "21.0.559";
   eulaDate = "2021-10-13";
   src = requireFile {
     name = "houdini-${version}-linux_x86_64_gcc11.2.tar.gz";
-    hash = "sha256-qHRR+RRtUgUam6FC1TWTZjg1FSakjLoMYVaiIfO+WOY=";
+    hash = "sha256-bZmoH1NKQhhMAhIl3pTL7irUZ7HrOhS8R7GApLD5514=";
     url = "https://www.sidefx.com/download/daily-builds/?production=true";
   };
-  outputHash = "sha256-SSBiqNZRnxz6tnvusYRi2UASY1k3voiblDpkiu+qU0w=";
+  outputHash = "sha256-/7ctlMUoyJdPdBQV7rRO9pWcg9bXcnMJsB9TN/Jo8QQ=";
 }