diff --git a/pkgs/development/python-modules/thorlabspm100/default.nix b/pkgs/development/python-modules/thorlabspm100/default.nix
index 52195a1fffd7..ae7d8df01db3 100644
--- a/pkgs/development/python-modules/thorlabspm100/default.nix
+++ b/pkgs/development/python-modules/thorlabspm100/default.nix
@@ -6,7 +6,7 @@
   setuptools-scm,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "thorlabspm100";
   version = "1.2.2";
   pyproject = true;
@@ -14,7 +14,7 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "clade";
     repo = "ThorlabsPM100";
-    rev = "v${version}";
+    tag = "v${finalAttrs.version}";
     hash = "sha256-X4qEow6u4aE0sbFwZfK3YEso2RS0c9j4iaWJPHaPQV4=";
   };
 
@@ -30,4 +30,4 @@ buildPythonPackage rec {
     license = lib.licenses.bsd3;
     maintainers = with lib.maintainers; [ fsagbuya ];
   };
-}
+})