diff --git a/README.md b/README.md
index 12a155c..919f247 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,8 @@ See the [Features](#features) for more functionalities
     - [x] firebase-functions
         - [x] performance configuration
         - [x] the url same as hosting
+    - [x] firebase-storage
+        - [x] profile picture
     - [x] firebase-auth
         - [x] firebase-auth password
             - [x] register
diff --git a/functions/package.json b/functions/package.json
index 01228fa..7b27f34 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -17,6 +17,7 @@
     "@nuxt/typescript-runtime": "^0.4.6",
     "@nuxtjs/axios": "^5.10.1",
     "@types/cookie-parser": "^1.4.2",
+    "@types/slug": "^0.9.1",
     "body-parser": "^1.19.0",
     "buefy": "^0.8.17",
     "bulma-helpers": "^0.3.10",
@@ -32,6 +33,7 @@
     "nuxt-i18n": "^6.10.1",
     "nuxt-property-decorator": "^2.7.2",
     "nuxt-start": "^2.12.2",
+    "slug": "^2.1.1",
     "vee-validate": "^3.3.0",
     "vuex-class": "^0.3.2"
   },