diff --git a/pkgs/by-name/fl/flatbuffers/package.nix b/pkgs/by-name/fl/flatbuffers/package.nix
index c9309930da81..4ab64ae642ab 100644
--- a/pkgs/by-name/fl/flatbuffers/package.nix
+++ b/pkgs/by-name/fl/flatbuffers/package.nix
@@ -8,13 +8,13 @@
 
 stdenv.mkDerivation rec {
   pname = "flatbuffers";
-  version = "25.9.23";
+  version = "25.12.19";
 
   src = fetchFromGitHub {
     owner = "google";
     repo = "flatbuffers";
-    rev = "v${version}";
-    hash = "sha256-A9nWfgcuVW3x9MDFeviCUK/oGcWJQwadI8LqNR8BlQw=";
+    tag = "v${version}";
+    hash = "sha256-I4PthsQOOV8tsi5uRYudyqBPcbE+ZH8Q9j0Ms4HP9Ec=";
   };
 
   nativeBuildInputs = [