diff --git a/pkgs/by-name/ha/harper/package.nix b/pkgs/by-name/ha/harper/package.nix
index 772784a79e42..ba03ff532ae3 100644
--- a/pkgs/by-name/ha/harper/package.nix
+++ b/pkgs/by-name/ha/harper/package.nix
@@ -6,24 +6,28 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "harper";
-  version = "0.19.1";
+  version = "0.20.0";
 
   src = fetchFromGitHub {
     owner = "Automattic";
     repo = "harper";
     rev = "v${version}";
-    hash = "sha256-3W/pFtI8G9GOEXt1nCpoy+vp6+59Ya3oqlx2EttGEIk=";
+    hash = "sha256-8JeF1HxsP+Y+C1g3YJ0B0+JHoRFkBjz4/T8rVr2KgGw=";
   };
 
+  buildAndTestSubdir = "harper-ls";
   useFetchCargoVendor = true;
-  cargoHash = "sha256-xPppf2YRgvGqmFBFLZl8XF5apGUX6kICE0jp2nx++io=";
+  cargoHash = "sha256-uVjDFo5mJi4Xbq0Z+XOjy5VqXqkm0a+4xu+dVnjWXCU=";
 
   meta = {
     description = "Grammar Checker for Developers";
     homepage = "https://github.com/Automattic/harper";
     changelog = "https://github.com/Automattic/harper/releases/tag/v${version}";
     license = lib.licenses.asl20;
-    maintainers = with lib.maintainers; [ pbsds ];
-    mainProgram = "harper-cli";
+    maintainers = with lib.maintainers; [
+      pbsds
+      sumnerevans
+    ];
+    mainProgram = "harper-ls";
   };
 }