diff --git a/pkgs/servers/mail/postfix/default.nix b/pkgs/servers/mail/postfix/default.nix
index 98eee073ddb6f..5b19a801456d9 100644
--- a/pkgs/servers/mail/postfix/default.nix
+++ b/pkgs/servers/mail/postfix/default.nix
@@ -26,11 +26,11 @@ in stdenv.mkDerivation rec {
 
   pname = "postfix";
 
-  version = "3.4.13";
+  version = "3.4.14";
 
   src = fetchurl {
     url = "ftp://ftp.cs.uu.nl/mirror/postfix/postfix-release/official/${pname}-${version}.tar.gz";
-    sha256 = "1sg7bbfr44bk3pg4n6rbq5bnc4b9v6c9kx2pc7vdm2gzfv0qnxrr";
+    sha256 = "1s00va2j9h5p8zynljik4f18fxj3chi7s4ag05jc4zxssaakyj03";
   };
 
   nativeBuildInputs = [ makeWrapper m4 ];