diff --git a/pkgs/by-name/ma/markuplinkchecker/package.nix b/pkgs/by-name/ma/markuplinkchecker/package.nix
index 546d45221681..baabb4624d87 100644
--- a/pkgs/by-name/ma/markuplinkchecker/package.nix
+++ b/pkgs/by-name/ma/markuplinkchecker/package.nix
@@ -8,7 +8,7 @@
   darwin,
 }:
 let
-  version = "0.19.2";
+  version = "0.21.0";
 in
 rustPlatform.buildRustPackage {
   pname = "markuplinkchecker";
@@ -18,11 +18,11 @@ rustPlatform.buildRustPackage {
     owner = "becheran";
     repo = "mlc";
     rev = "v${version}";
-    hash = "sha256-NsGgUAe8CYAZhQMR/Jg+MGGKmL2ziFqK+MalrDSLcJQ=";
+    hash = "sha256-16ZGYUP7h6WmwjadLHqOQClejZ35LwavFgjs9x3NYVo=";
   };
 
   useFetchCargoVendor = true;
-  cargoHash = "sha256-4H5dsLOggB/KlDcZ/eCxZxreczkg5rXsGyCO9P+OLvw=";
+  cargoHash = "sha256-u60hjpQaF+EnWzMcM7T8UjcERF0+0ArltKcQXkEaxmc=";
 
   nativeBuildInputs = [ pkg-config ];