diff --git a/machines/kat-betamail/procmail_322.patch b/machines/kat-betamail/0001-revert-procmail-to-3.22.patch
similarity index 71%
rename from machines/kat-betamail/procmail_322.patch
rename to machines/kat-betamail/0001-revert-procmail-to-3.22.patch
index 270bab1..cf7006c 100644
--- a/machines/kat-betamail/procmail_322.patch
+++ b/machines/kat-betamail/0001-revert-procmail-to-3.22.patch
@@ -1,20 +1,19 @@
-
-From f4fb2d56f2d1cd4e0f1062358e436bfb34c6a1c9 Mon Sep 17 00:00:00 2001
+From f4ddc59778ebaa1bd58ba89aaee44a56049eec3f Mon Sep 17 00:00:00 2001
 From: catvayor <catvayor@katvayor.net>
-Date: Fri, 26 Jul 2024 20:59:03 +0200
-Subject: [PATCH] revert update of procmail
+Date: Fri, 20 Dec 2024 11:49:04 +0100
+Subject: [PATCH] revert: procmail to 3.22
 
 ---
- .../misc/procmail/CVE-2014-3618.patch         | 18 ++++++++++++++++++
- pkgs/applications/misc/procmail/default.nix   | 19 +++++++++----------
+ pkgs/by-name/pr/procmail/CVE-2014-3618.patch | 18 ++++++++++++++++++
+ pkgs/by-name/pr/procmail/package.nix         | 19 +++++++++----------
  2 files changed, 27 insertions(+), 10 deletions(-)
- create mode 100644 pkgs/applications/misc/procmail/CVE-2014-3618.patch
+ create mode 100644 pkgs/by-name/pr/procmail/CVE-2014-3618.patch
 
-diff --git a/pkgs/applications/misc/procmail/CVE-2014-3618.patch b/pkgs/applications/misc/procmail/CVE-2014-3618.patch
+diff --git a/pkgs/by-name/pr/procmail/CVE-2014-3618.patch b/pkgs/by-name/pr/procmail/CVE-2014-3618.patch
 new file mode 100644
 index 000000000000..e3aa5600e40e
 --- /dev/null
-+++ b/pkgs/applications/misc/procmail/CVE-2014-3618.patch
++++ b/pkgs/by-name/pr/procmail/CVE-2014-3618.patch
 @@ -0,0 +1,18 @@
 +From http://seclists.org/oss-sec/2014/q3/495 (with whitespace corrected).
 +
@@ -34,11 +33,11 @@ index 000000000000..e3aa5600e40e
 +       }
 +      hitspc=2;
 +    }
-diff --git a/pkgs/applications/misc/procmail/default.nix b/pkgs/applications/misc/procmail/default.nix
-index 3bd280766b16..865904f75d46 100644
---- a/pkgs/applications/misc/procmail/default.nix
-+++ b/pkgs/applications/misc/procmail/default.nix
-@@ -2,20 +2,19 @@
+diff --git a/pkgs/by-name/pr/procmail/package.nix b/pkgs/by-name/pr/procmail/package.nix
+index dfb4bdb5a895..be9187234c12 100644
+--- a/pkgs/by-name/pr/procmail/package.nix
++++ b/pkgs/by-name/pr/procmail/package.nix
+@@ -8,20 +8,19 @@
  
  stdenv.mkDerivation rec {
    pname = "procmail";
@@ -67,7 +66,7 @@ index 3bd280766b16..865904f75d46 100644
      })
    ];
  
-@@ -45,7 +44,7 @@ stdenv.mkDerivation rec {
+@@ -55,7 +54,7 @@ stdenv.mkDerivation rec {
  
    meta = with lib; {
      description = "Mail processing and filtering utility";
@@ -77,4 +76,5 @@ index 3bd280766b16..865904f75d46 100644
      platforms = platforms.unix;
      maintainers = with maintainers; [ gebner ];
 -- 
-2.45.1
+2.47.0
+
diff --git a/machines/kat-betamail/default.nix b/machines/kat-betamail/default.nix
index 05d0435..133db97 100644
--- a/machines/kat-betamail/default.nix
+++ b/machines/kat-betamail/default.nix
@@ -1,7 +1,7 @@
 {
   meta = {
     version = "unstable";
-    patches = [ ./procmail_322.patch ];
+    patches = [ ./0001-revert-procmail-to-3.22.patch ];
   };
   config = import ./configuration.nix;
 }