diff --git a/pkgs/servers/mail/nullmailer/default.nix b/pkgs/servers/mail/nullmailer/default.nix
index ab632372b464..4b753bdf0cdb 100644
--- a/pkgs/servers/mail/nullmailer/default.nix
+++ b/pkgs/servers/mail/nullmailer/default.nix
@@ -4,12 +4,12 @@ assert tls -> gnutls != null;
 
 stdenv.mkDerivation rec {
 
-  version = "2.1";
+  version = "2.2";
   name = "nullmailer-${version}";
 
   src = fetchurl {
     url = "https://untroubled.org/nullmailer/nullmailer-${version}.tar.gz";
-    sha256 = "0gykh0qc86rk0knfvp8ndqkryal3pvqdfdya94wvb6n1cc8p3ild";
+    sha256 = "0md8cf90fl2yf3zh9njjy42a673v4j4ygyq95xg7fzkygdigm1lq";
   };
 
   buildInputs = stdenv.lib.optional tls gnutls;