diff --git a/pkgs/servers/samba/4.x.nix b/pkgs/servers/samba/4.x.nix
index 1d6951bb8c1..44c9676fc77 100644
--- a/pkgs/servers/samba/4.x.nix
+++ b/pkgs/servers/samba/4.x.nix
@@ -42,11 +42,11 @@ with stdenv.lib;
 
 stdenv.mkDerivation rec {
   pname = "samba";
-  version = "4.12.0";
+  version = "4.12.1";
 
   src = fetchurl {
     url = "mirror://samba/pub/samba/stable/${pname}-${version}.tar.gz";
-    sha256 = "1zk5jqnkifkfi6ssn02bh2ih7vyw2nsr0angsd6kyg3xaq5bgh3f";
+    sha256 = "0xbdf9651lm4b5g60ly40nc7r8gssvnvq7m3pdma99mdcs5vcz01";
   };
 
   outputs = [ "out" "dev" "man" ];