diff --git a/pkgs/tools/text/mdbook/default.nix b/pkgs/tools/text/mdbook/default.nix
index 075dd1b2b58..57f373a9ce1 100644
--- a/pkgs/tools/text/mdbook/default.nix
+++ b/pkgs/tools/text/mdbook/default.nix
@@ -2,16 +2,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "mdbook";
-  version = "0.4.17";
+  version = "0.4.18";
 
   src = fetchFromGitHub {
     owner = "rust-lang";
     repo = "mdBook";
     rev = "v${version}";
-    sha256 = "sha256-08ccRiOBXYqueKfyi/Ry39O2xOXUKishgqhn6RdbvUE=";
+    sha256 = "sha256-lsryNrgjOGdugOhtkNbnYEreF0X1ywLVaFmKUXDf884=";
   };
 
-  cargoSha256 = "sha256-vXUjKpCGlHlBvXLtmGkFtHRxxZakiEzuNzReFGEl6dw=";
+  cargoSha256 = "sha256-l95nbp9PEgO97D1M/R9IB3Xfog6+DkZwyVY2DEl5mG4=";
 
   buildInputs = lib.optionals stdenv.isDarwin [ CoreServices ];