diff --git a/pkgs/applications/misc/fetchmail/default.nix b/pkgs/applications/misc/fetchmail/default.nix
index 18ed79c99d6..db807ffe1cf 100644
--- a/pkgs/applications/misc/fetchmail/default.nix
+++ b/pkgs/applications/misc/fetchmail/default.nix
@@ -1,22 +1,19 @@
 { lib, stdenv, fetchurl, openssl }:
 
-let
-  version = "6.4.20";
-in
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   pname = "fetchmail";
-  inherit version;
+  version = "6.4.22";
 
   src = fetchurl {
     url = "mirror://sourceforge/fetchmail/fetchmail-${version}.tar.xz";
-    sha256 = "0xk171sbxcwjh1ibpipryw5sv4sy7jjfvhn5n373j04g5sp428f8";
+    sha256 = "sha256-zGgYvVlDVgIWn6KS1tFj1Wshx/UxEoKUcKOs6r5hLIQ=";
   };
 
   buildInputs = [ openssl ];
 
   configureFlags = [ "--with-ssl=${openssl.dev}" ];
 
-  meta = {
+  meta = with lib; {
     homepage = "https://www.fetchmail.info/";
     description = "A full-featured remote-mail retrieval and forwarding utility";
     longDescription = ''
@@ -27,9 +24,8 @@ stdenv.mkDerivation {
       all flavors of IMAP, ETRN, and ODMR. It can even support IPv6 and
       IPSEC.
     '';
-
-    platforms = lib.platforms.unix;
-    maintainers = [ lib.maintainers.peti ];
-    license = lib.licenses.gpl2Plus;
+    platforms = platforms.unix;
+    maintainers = [ maintainers.peti ];
+    license = licenses.gpl2Plus;
   };
 }