diff --git a/pkgs/tools/text/mdbook-open-on-gh/default.nix b/pkgs/tools/text/mdbook-open-on-gh/default.nix
index a570d6805928..8ce422340ed0 100644
--- a/pkgs/tools/text/mdbook-open-on-gh/default.nix
+++ b/pkgs/tools/text/mdbook-open-on-gh/default.nix
@@ -2,16 +2,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "mdbook-open-on-gh";
-  version = "2.4.1";
+  version = "2.4.2";
 
   src = fetchFromGitHub {
     owner = "badboy";
     repo = pname;
     rev = version;
-    hash = "sha256-d+8/7lli6iyzAWHIi0ahwPBwGhXrQrCKQisD2+jPHQ0=";
+    hash = "sha256-ZExmOHvQApGZaepOuf3yXYe8NV3FpMtCqCR1KE6q4no=";
   };
 
-  cargoHash = "sha256-WbPYrjDMJEwle+Pev5nr9ZhnycbXUjdrx8XAqQ0OpaM=";
+  cargoHash = "sha256-WLCcYgkrH5fZvv3LZNEolBQUcTZC2URs6bIgzf4BtWU=";
 
   meta = with lib; {
     description = "mdbook preprocessor to add a open-on-github link on every page";