diff --git a/pkgs/by-name/fa/fasmg/package.nix b/pkgs/by-name/fa/fasmg/package.nix
index ed6f8d65485a..8b9618b5a498 100644
--- a/pkgs/by-name/fa/fasmg/package.nix
+++ b/pkgs/by-name/fa/fasmg/package.nix
@@ -14,11 +14,11 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "fasmg";
-  version = "l45p";
+  version = "l4gs";
 
   src = fetchzip {
     url = "https://flatassembler.net/fasmg.${finalAttrs.version}.zip";
-    sha256 = "sha256-0/P20DiRZbqZHoxWiBPs6wXqpbvRroisyF0dCdmd+j8=";
+    sha256 = "sha256-lx46RKXVu6z3+luIizSfGf697wJvS+ccwZaOgGwGXr4=";
     stripRoot = false;
   };