diff --git a/pkgs/by-name/pu/pulldown-cmark/package.nix b/pkgs/by-name/pu/pulldown-cmark/package.nix
index a1b07d550964..a9f32bfc446b 100644
--- a/pkgs/by-name/pu/pulldown-cmark/package.nix
+++ b/pkgs/by-name/pu/pulldown-cmark/package.nix
@@ -6,14 +6,14 @@
 
 rustPlatform.buildRustPackage (finalAttrs: {
   pname = "pulldown-cmark";
-  version = "0.13.3";
+  version = "0.13.4";
 
   src = fetchCrate {
     inherit (finalAttrs) pname version;
-    hash = "sha256-TeNF8Fgfo9m/TEAXBogzioSEVkY5lKOBm33HELk+WZE=";
+    hash = "sha256-XMKUFbPsYhYIxMxEvUJT38Jr03lzy9afRqe6tIj9lls=";
   };
 
-  cargoHash = "sha256-i0mQvxtDKrU3hXe5LGMygELBVnMhtRytSPDA9u+49mI=";
+  cargoHash = "sha256-JgGvRSUE6UXf0pSl6x6SC7gGgTEoq2E3t0tPrueuIEE=";
 
   meta = {
     description = "Pull parser for CommonMark written in Rust";