diff --git a/pkgs/development/python-modules/mdformat/default.nix b/pkgs/development/python-modules/mdformat/default.nix
index 28df80388d87..6cfd287304a6 100644
--- a/pkgs/development/python-modules/mdformat/default.nix
+++ b/pkgs/development/python-modules/mdformat/default.nix
@@ -12,7 +12,7 @@
 
 buildPythonPackage rec {
   pname = "mdformat";
-  version = "0.7.17";
+  version = "0.7.18";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -21,7 +21,7 @@ buildPythonPackage rec {
     owner = "executablebooks";
     repo = "mdformat";
     rev = "refs/tags/${version}";
-    hash = "sha256-umtfbhN6sDR/rFr1LwmJ21Ph9bK1Qq43bmMVzGCPD5s=";
+    hash = "sha256-t2yx8cIq8es3XOc2nbHPKjUUium5+RPZuD8oNWZxVV0=";
   };
 
   nativeBuildInputs = [ setuptools ];