diff --git a/pkgs/by-name/cr/crowbar/package.nix b/pkgs/by-name/cr/crowbar/package.nix
index 893db6ece31c..1898c4e018bf 100644
--- a/pkgs/by-name/cr/crowbar/package.nix
+++ b/pkgs/by-name/cr/crowbar/package.nix
@@ -8,16 +8,16 @@
   tigervnc,
 }:
 
-python3Packages.buildPythonApplication {
+python3Packages.buildPythonApplication (finalAttrs: {
   pname = "crowbar";
-  version = "unstable-2020-04-23";
+  version = "4.2";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "galkan";
     repo = "crowbar";
-    rev = "500d633ff5ddfcbc70eb6d0b4d2181e5b8d3c535";
-    sha256 = "05m9vywr9976pc7il0ak8nl26mklzxlcqx0p8rlfyx1q766myqzf";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-tLtQwrCh304I0AYCgSiFfMhJd0CdbAXSMymjd6SSC8A=";
   };
 
   build-system = [ python3Packages.setuptools ];
@@ -44,4 +44,4 @@ python3Packages.buildPythonApplication {
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ pamplemousse ];
   };
-}
+})