diff --git a/pkgs/by-name/le/lemurs/package.nix b/pkgs/by-name/le/lemurs/package.nix
index 0d5095feaa64..cbb8495a06e5 100644
--- a/pkgs/by-name/le/lemurs/package.nix
+++ b/pkgs/by-name/le/lemurs/package.nix
@@ -8,19 +8,19 @@
   systemdMinimal,
   testers,
 }:
-rustPlatform.buildRustPackage {
+rustPlatform.buildRustPackage rec {
   pname = "lemurs";
-  version = "0.3.2-unstable-2024-07-24";
+  version = "0.4.0";
 
   src = fetchFromGitHub {
     owner = "coastalwhite";
     repo = "lemurs";
-    rev = "1d4be7d0c3f528a0c1e9326ac77f1e8a17161c83";
-    hash = "sha256-t/riJpgy0bD5CU8Zkzket4Gks2JXXSLRreMlrxlok0c=";
+    tag = "v${version}";
+    hash = "sha256-dtAmgzsUhn3AfafWbCaaog0S1teIy+8eYtaHBhvLfLI=";
   };
 
   useFetchCargoVendor = true;
-  cargoHash = "sha256-Cwgu30rGe1/Mm4FEEH11OTtTHUlBNwl5jVzmJg5qQe8=";
+  cargoHash = "sha256-XoGtIHYCGXNuwnpDTU7NbZAs6rCO+69CAG89VCv9aAc=";
 
   buildInputs = [
     bash
@@ -30,8 +30,6 @@ rustPlatform.buildRustPackage {
 
   passthru.tests.version = testers.testVersion {
     package = lemurs;
-    # Package version is now different from the version that lemurs reports itself as.
-    version = "0.3.2";
   };
 
   meta = {