diff --git a/pkgs/tools/text/markdown-pp/default.nix b/pkgs/tools/text/markdown-pp/default.nix
index f479c221b65f..eaaa0547964d 100644
--- a/pkgs/tools/text/markdown-pp/default.nix
+++ b/pkgs/tools/text/markdown-pp/default.nix
@@ -3,7 +3,7 @@
 with pythonPackages;
 buildPythonApplication rec {
   pname = "MarkdownPP";
-  version = "1.4";
+  version = "1.5.1";
   propagatedBuildInputs = [ pillow watchdog ];
   checkPhase = ''
     cd test
@@ -13,7 +13,7 @@ buildPythonApplication rec {
     owner = "jreese";
     repo = "markdown-pp";
     rev = "v${version}";
-    sha256 = "1xmc0cxvvf6jzr7p4f0hm8icysrd44sy2kgff9b99lr1agwkmysq";
+    sha256 = "180i5wn9z6vdk2k2bh8345z3g80hj7zf5s2pq0h7k9vaxqpp7avc";
   };
   meta = with stdenv.lib; {
     description = "Preprocessor for Markdown files to generate a table of contents and other documentation needs";