diff --git a/demo/site/package.json b/demo/site/package.json
index 253b2b464ca..d6298b58a00 100644
--- a/demo/site/package.json
+++ b/demo/site/package.json
@@ -47,7 +47,7 @@
         "filesize": "^10.1.6",
         "ioredis": "^5.10.1",
         "lru-cache": "^11.5.1",
-        "mjml": "^4.18.0",
+        "mjml": "^5.0.0",
         "next": "^16.2.10",
         "react": "^19.2.6",
         "react-dom": "^19.2.6",
diff --git a/packages/mail-react/package.json b/packages/mail-react/package.json
index 8f6908ae641..494110ad530 100644
--- a/packages/mail-react/package.json
+++ b/packages/mail-react/package.json
@@ -43,7 +43,7 @@
     "dependencies": {
         "@faire/mjml-react": "^3.5.4",
         "clsx": "^2.1.1",
-        "mjml": "^4.18.0",
+        "mjml": "^5.0.0",
         "mjml-browser": "^4.18.0",
         "redraft": "^0.10.2"
     },