diff --git a/pkgs/development/tools/gllvm/default.nix b/pkgs/development/tools/gllvm/default.nix
index 3b754db80fd8..b1350fba7c4e 100644
--- a/pkgs/development/tools/gllvm/default.nix
+++ b/pkgs/development/tools/gllvm/default.nix
@@ -1,14 +1,14 @@
 { lib, buildGoModule, fetchFromGitHub, llvmPackages, getconf }:
 
-buildGoModule rec {
+buildGoModule {
   pname = "gllvm";
-  version = "1.3.1";
+  version = "1.3.1-unstable-2024-04-28";
 
   src = fetchFromGitHub {
     owner = "SRI-CSL";
     repo = "gllvm";
-    rev = "v${version}";
-    sha256 = "sha256-CoreqnMRuPuv+Ci1uyF3HJCJFwK2jwB79okynv6AHTA=";
+    rev = "154531bdd9c05cd9d01742bc1b35bdf200a487d3";
+    sha256 = "sha256-dxrtJFqEEDKx33+sOm+R7huBwbovlKzL4qFXoco8A4s=";
   };
 
   vendorHash = null;