diff --git a/pkgs/by-name/fs/fstar/package.nix b/pkgs/by-name/fs/fstar/package.nix
index b694bf7cdbf0..d03a9c699821 100644
--- a/pkgs/by-name/fs/fstar/package.nix
+++ b/pkgs/by-name/fs/fstar/package.nix
@@ -13,19 +13,19 @@
 
 let
   # The version of ocaml fstar uses.
-  ocamlPackages = ocaml-ng.ocamlPackages_5_3;
+  ocamlPackages = ocaml-ng.ocamlPackages_5_4;
 
   fstarZ3 = callPackage ./z3 { };
 in
 ocamlPackages.buildDunePackage (finalAttrs: {
   pname = "fstar";
-  version = "2025.12.15";
+  version = "2026.03.24";
 
   src = fetchFromGitHub {
     owner = "FStarLang";
     repo = "FStar";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-UuwDX6178YMhEQqpEOATswzoUNpEECq7Nyh2yk5gKRg=";
+    hash = "sha256-b+LQ6X1yHUdBlQp+bA9KbRu6vhB3CwipN7pAxWxR2Nk=";
   };
 
   nativeBuildInputs = [