diff --git a/pkgs/servers/samba/4.x.nix b/pkgs/servers/samba/4.x.nix
index 1daf8ab22c8..509bd762bf6 100644
--- a/pkgs/servers/samba/4.x.nix
+++ b/pkgs/servers/samba/4.x.nix
@@ -44,11 +44,11 @@ with stdenv.lib;
 
 stdenv.mkDerivation rec {
   pname = "samba";
-  version = "4.13.0";
+  version = "4.13.3";
 
   src = fetchurl {
     url = "mirror://samba/pub/samba/stable/${pname}-${version}.tar.gz";
-    sha256 = "1xp7mmy5a892g5c56n7zz3l2kbgyrqn3y50lqq5aa2nvx2p547gi";
+    sha256 = "0hb5fli4kgwg376c289mcmdqszd51vs8pzzrw7j6yr9k7za8a1f1";
   };
 
   outputs = [ "out" "dev" "man" ];