diff --git a/gemini-mode.el b/gemini-mode.el
index 61eacb6..bfab40a 100644
--- a/gemini-mode.el
+++ b/gemini-mode.el
@@ -54,14 +54,14 @@
   :group 'gemini-mode)
 
 (defvar gemini-highlights
-  (let* ((gemini-heading-3-regexp "^###\s.*$")
-         (gemini-heading-2-regexp "^##\s.*$")
-         (gemini-heading-1-regexp "^#\s.*$")
-         (gemini-heading-rest-regexp "^####+\s.*$")
+  (let* ((gemini-heading-rest-regexp "^####+[[:blank:]]*.*$")
+         (gemini-heading-3-regexp "^###[[:blank:]]*.*$")
+         (gemini-heading-2-regexp "^##[[:blank:]]*.*$")
+         (gemini-heading-1-regexp "^#[[:blank:]]*.*$")
          (gemini-link-regexp "^=>.*$")
          (gemini-ulist-regexp "^\\* .*$")
          (gemini-preformatted-regexp "^```")
-         (gemini-quote-regexp "^> .*$"))
+         (gemini-quote-regexp "^>[[:blank:]]*.*$"))
     `((,gemini-heading-rest-regexp . 'gemini-heading-face-rest)
       (,gemini-heading-3-regexp . 'gemini-heading-face-3)
       (,gemini-heading-2-regexp . 'gemini-heading-face-2)