diff --git a/pkgs/by-name/gp/gpac/package.nix b/pkgs/by-name/gp/gpac/package.nix
index 5603ae754edf..44901b00999f 100644
--- a/pkgs/by-name/gp/gpac/package.nix
+++ b/pkgs/by-name/gp/gpac/package.nix
@@ -62,12 +62,12 @@ let
     };
   };
   unstable = {
-    version = "2.4-unstable-2025-10-26";
+    version = "2.4.0-unstable-2025-12-23";
     src = fetchFromGitHub {
       owner = "gpac";
       repo = "gpac";
-      rev = "e1a54e81b3befba2b0bffd1d4c1cf50da516c5f3";
-      hash = "sha256-jSMBPuWPmTDCebImdmAcCZl0hEQpJK4QMNGcEXgs3A4=";
+      rev = "035540740e7a9901cd5f5b08ff5df4f31ac28ec2";
+      hash = "sha256-CAP6NYSU+ctjl9BMD22rybNcWVm3eAVDAiZKfp8/xDc=";
     };
     updateScript = unstableGitUpdater {
       tagFormat = "v*";