diff --git a/modules/emacs/default.el b/modules/emacs/default.el
index 0823a22..c17acc7 100644
--- a/modules/emacs/default.el
+++ b/modules/emacs/default.el
@@ -491,6 +491,12 @@
   :mode "\\.json\\'"
   :hook (json-mode-hook . yas-minor-mode))
 
+;; markdown
+(use-package markdown-mode
+  :hook (markdown-mode . lsp)
+  :config
+  (require 'lsp-marksman))
+
 ;; lsp
 (use-package lsp-mode
   :demand t
diff --git a/modules/emacs/default.nix b/modules/emacs/default.nix
index c1ef1ea..453002b 100644
--- a/modules/emacs/default.nix
+++ b/modules/emacs/default.nix
@@ -74,6 +74,7 @@ with lib; let
           lsp-mode
           lsp-ui
           magit
+          markdown-mode
           moe-theme
           multiple-cursors
           nix-mode