diff --git a/pkgs/development/python-modules/buildout-nix/default.nix b/pkgs/development/python-modules/buildout-nix/default.nix
index 7f7afd67e7e0..834dd42bc087 100644
--- a/pkgs/development/python-modules/buildout-nix/default.nix
+++ b/pkgs/development/python-modules/buildout-nix/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "zc.buildout";
-  version = "2.13.3";
+  version = "2.13.4";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1dyc5g3yv7wm3hf3fcsh6y1wivzjj1bspafr5qqb653z9a31lsfn";
+    sha256 = "b978b2f9317b317ee4191f78fcc4f05b1ac41bdaaae47f0956f14c8285feef63";
   };
 
   patches = [ ./nix.patch ];