diff --git a/pkgs/development/python-modules/p1monitor/default.nix b/pkgs/development/python-modules/p1monitor/default.nix
index 634c06352e50..f7e985fa73a8 100644
--- a/pkgs/development/python-modules/p1monitor/default.nix
+++ b/pkgs/development/python-modules/p1monitor/default.nix
@@ -12,7 +12,7 @@
 
 buildPythonPackage rec {
   pname = "p1monitor";
-  version = "2.1.1";
+  version = "2.2.0";
   format = "pyproject";
 
   disabled = pythonOlder "3.9";
@@ -20,8 +20,8 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "klaasnicolaas";
     repo = "python-p1monitor";
-    rev = "refs/tags/v${version}";
-    hash = "sha256-VHY5AWxt5BZd1NQKzsgubEZBLKAlDNm8toyEazPUnDU=";
+    rev = "refs/tags/${version}";
+    hash = "sha256-HaTwqTKqTuXZVt2fhKXyXEEYZCSau/YY6DRg6YHIhOI=";
   };
 
   nativeBuildInputs = [