diff --git a/pkgs/development/nim-packages/markdown/default.nix b/pkgs/development/nim-packages/markdown/default.nix
index c893ff0e4148..9b9f0462c3f9 100644
--- a/pkgs/development/nim-packages/markdown/default.nix
+++ b/pkgs/development/nim-packages/markdown/default.nix
@@ -3,6 +3,6 @@
 fetchFromGitHub {
   owner = "soasme";
   repo = "nim-markdown";
-  rev = "abdbe5e";
-  sha256 = "0f3c1sxvhbbds43c9l8cz69pfpf984msj1lv4pb7bzpxb5zil2wy";
+  rev = "a661c26";
+  hash = "sha256-/GkCSOmg2JxQhiDS8vgnKIoKvVgld/uIilUHslvwMnk=";
 }