diff --git a/pkgs/tools/text/mdbook-epub/default.nix b/pkgs/tools/text/mdbook-epub/default.nix
index 830d6f92a8ad..48dbe92ca6ce 100644
--- a/pkgs/tools/text/mdbook-epub/default.nix
+++ b/pkgs/tools/text/mdbook-epub/default.nix
@@ -9,18 +9,18 @@
 
 let
   pname = "mdbook-epub";
-  version = "unstable-2022-12-25";
+  version = "0.4.37";
 in rustPlatform.buildRustPackage {
   inherit pname version;
 
   src = fetchFromGitHub {
     owner = "michael-f-bryan";
     repo = pname;
-    rev = "2e1e48d0d1a1b4c1b0f866267e6666b41c598225";
-    hash = "sha256-wjn/7dv/Z2OmwvH/XaEeCz/JOvJWlMJ60q5qozzOEWY=";
+    rev = version;
+    hash = "sha256-ddWClkeGabvqteVUtuwy4pWZGnarrKrIbuPEe62m6es=";
   };
 
-  cargoHash = "sha256-4oSpQUYJDK0srABZMwJ8x8jv6DOnLShXSnjLjf8c9Ac=";
+  cargoHash = "sha256-cJS9HgbnLYXkZrAyGNEeu6q+znH+7cj8CUGIbTCbB9Y=";
 
   nativeBuildInputs = [
     pkg-config