diff --git a/package.json b/package.json
index 339b4ce..294eb65 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
 		"wrangler": "^4.19.1"
 	},
 	"dependencies": {
-		"mjml": "4.8.1"
+		"mjml": "5.0.0"
 	},
 	"patchedDependencies": {
 		"html-minifier@4.0.0": "patches/html-minifier@4.0.0.patch"