diff --git a/pkgs/by-name/iv/ivan/package.nix b/pkgs/by-name/iv/ivan/package.nix
index e681b7dfb47b..46106beb314e 100644
--- a/pkgs/by-name/iv/ivan/package.nix
+++ b/pkgs/by-name/iv/ivan/package.nix
@@ -13,15 +13,14 @@
 }:
 
 stdenv.mkDerivation rec {
-
   pname = "ivan";
-  version = "059";
+  version = "059-unstable-2025-02-20";
 
   src = fetchFromGitHub {
     owner = "Attnam";
     repo = "ivan";
-    rev = "v${version}";
-    sha256 = "sha256-5Ijy28LLx1TGnZE6ZNQXPYfvW2KprF+91fKx2MzLEms=";
+    rev = "0000b8621bb767b594802e663686d3a1da2c5060";
+    hash = "sha256-vqrQozsNrqW4oqoJ4V5E15AsMEuHq+pyZz7EtiA5euE=";
   };
 
   nativeBuildInputs = [