diff --git a/pkgs/servers/postfixadmin/default.nix b/pkgs/servers/postfixadmin/default.nix
index cd60f3d9dadb..be879fa03062 100644
--- a/pkgs/servers/postfixadmin/default.nix
+++ b/pkgs/servers/postfixadmin/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "postfixadmin";
-  version = "3.3.11";
+  version = "3.3.13";
 
   src = fetchFromGitHub {
     owner = pname;
     repo = pname;
     rev = "${pname}-${version}";
-    sha256 = "sha256-jOO0AVcCmBxHLaWQOwvt7OFKAcAYPTVHTdQz1ZaYIqE=";
+    sha256 = "sha256-46bc34goAcRvaiyW7z0AvIcd8n61TL6vgLQ+y7nNKBQ=";
   };
 
   installPhase = ''