diff --git a/pkgs/development/python-modules/proxmoxer/default.nix b/pkgs/development/python-modules/proxmoxer/default.nix
index 957d3ce1aab3..5ef1b6dc00f5 100644
--- a/pkgs/development/python-modules/proxmoxer/default.nix
+++ b/pkgs/development/python-modules/proxmoxer/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "proxmoxer";
-  version = "2.2.0";
+  version = "develop";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
@@ -21,8 +21,8 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "proxmoxer";
     repo = "proxmoxer";
-    tag = version;
-    hash = "sha256-56PccWOZiYLPSaJrFfOqP9kTuHqqhgiF1DpnNgFSabI=";
+    rev = "cf1bcde696537c74ef00d8e71fb86735fb4c2c79";
+    hash = "sha256-h5Sla7/4XiZSGwKstyiqs/T2Qgi13jI9YMVPqDcF3sA=";
   };
 
   build-system = [ setuptools ];