diff --git a/pkgs/development/python-modules/azure-mgmt-billing/default.nix b/pkgs/development/python-modules/azure-mgmt-billing/default.nix
index 6e9656950d5..9aeaf50ce4e 100644
--- a/pkgs/development/python-modules/azure-mgmt-billing/default.nix
+++ b/pkgs/development/python-modules/azure-mgmt-billing/default.nix
@@ -10,11 +10,11 @@
 
 buildPythonPackage rec {
   pname = "azure-mgmt-billing";
-  version = "0.2.0"; #pypi's 0.2.0 doesn't build ootb
+  version = "1.0.0"; #pypi's 0.2.0 doesn't build ootb
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1li2bcdwdapwwx7xbvgfsq51f2mrwm0qyzih8cjhszcah2rkpxw5";
+    sha256 = "8b55064546c8e94839d9f8c98e9ea4b021004b3804e192bf39fa65b603536ad0";
     extension = "zip";
   };
 
@@ -25,7 +25,7 @@ buildPythonPackage rec {
   ];
 
   preBuild = ''
-    rm azure_bdist_wheel.py
+    rm -rf azure_bdist_wheel.py
     substituteInPlace setup.cfg \
       --replace "azure-namespace-package = azure-mgmt-nspkg" ""
   '';