diff --git a/pkgs/applications/science/electronics/nanovna-saver/default.nix b/pkgs/applications/science/electronics/nanovna-saver/default.nix
index 06b77294da7e..67b600b19f17 100644
--- a/pkgs/applications/science/electronics/nanovna-saver/default.nix
+++ b/pkgs/applications/science/electronics/nanovna-saver/default.nix
@@ -6,13 +6,13 @@
 }:
 python3.pkgs.buildPythonApplication rec {
   pname = "nanovna-saver";
-  version = "0.4.0";
+  version = "0.5.1";
 
   src = fetchFromGitHub {
     owner = "NanoVNA-Saver";
     repo = pname;
-    rev = "v${version}";
-    sha256 = "1n1bh46spdyk7kgvv95hyfy9f904czhzlvk41vliqkak56hj2ss1";
+    rev = "refs/tags/v${version}";
+    sha256 = "sha256-2/A9uFYa682cvK2uzvBLZBDouhS6C6Q91v8Pun7GgSw=";
   };
 
   nativeBuildInputs = [ wrapQtAppsHook ];