diff --git a/pkgs/development/tools/zls/default.nix b/pkgs/development/tools/zls/default.nix
index 0c9a715e9bd5..0fbe7bc31140 100644
--- a/pkgs/development/tools/zls/default.nix
+++ b/pkgs/development/tools/zls/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "zls";
-  version = "0.1.0";
+  version = "unstable-2021-06-06";
 
   src = fetchFromGitHub {
     owner = "zigtools";
     repo = pname;
-    rev = version;
-    sha256 = "sha256-A4aOdmlIxBUeKyczzLxH4y1Rl9TgE1EeiKGbWY4p/00=";
+    rev = "39d87188647bd8c8eed304ee18f2dd1df6942f60";
+    sha256 = "sha256-22N508sVkP1OLySAijhtTPzk2fGf+FVnX9LTYRbRpB4=";
     fetchSubmodules = true;
   };
 
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   '';
 
   installPhase = ''
-    zig build -Drelease-safe -Dtarget=${stdenv.hostPlatform.parsed.cpu.name}-native --prefix $out install
+    zig build -Drelease-safe -Dcpu=baseline --prefix $out install
   '';
 
   meta = with lib; {