diff --git a/packages/tailwindcss-language-service/src/util/languages.ts b/packages/tailwindcss-language-service/src/util/languages.ts
index f7e354c..ba99c0e 100644
--- a/packages/tailwindcss-language-service/src/util/languages.ts
+++ b/packages/tailwindcss-language-service/src/util/languages.ts
@@ -1,5 +1,7 @@
 export const htmlLanguages = [
   'aspnetcorerazor',
+  'astro',
+  'astro-markdown',
   'blade',
   'django-html',
   'edge',