diff --git a/demo/file-size.json b/demo/file-size.json
new file mode 100644
index 0000000..6c43e6b
--- /dev/null
+++ b/demo/file-size.json
@@ -0,0 +1,7 @@
+{
+  "angularIndexBundleJs": "764 kB",
+  "reactIndexBundleJs": "163 kB",
+  "vueIndexBundleJs": "97.1 kB",
+  "indexBundleCss": "38.9 kB",
+  "treeIconPng": "636 B"
+}
\ No newline at end of file
diff --git a/demo/rev-static.config.js b/demo/rev-static.config.js
index 5480661..46423aa 100644
--- a/demo/rev-static.config.js
+++ b/demo/rev-static.config.js
@@ -13,5 +13,6 @@ module.exports = {
   sha: 256,
   customNewFileName: (filePath, fileString, md5String, baseName, extensionName) => baseName + '-' + md5String + extensionName,
   noOutputFiles: [],
-  base: 'demo'
+  base: 'demo',
+  fileSize: 'demo/file-size.json'
 }
diff --git a/package-lock.json b/package-lock.json
index 908d29b..8e02e1d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3951,6 +3951,12 @@
       "integrity": "sha1-gV7R9uvGWSb4ZbMQwHE7yzMVzks=",
       "dev": true
     },
+    "pretty-bytes": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/pretty-bytes/-/pretty-bytes-4.0.2.tgz",
+      "integrity": "sha1-sr+C5zUNZcbDOqlaqlpPYyf2HNk=",
+      "dev": true
+    },
     "process": {
       "version": "0.11.10",
       "resolved": "https://registry.npmjs.org/process/-/process-0.11.10.tgz",
@@ -4237,9 +4243,9 @@
       "dev": true
     },
     "rev-static": {
-      "version": "2.6.0",
-      "resolved": "https://registry.npmjs.org/rev-static/-/rev-static-2.6.0.tgz",
-      "integrity": "sha512-hM+umlrPCftbqp772L2G1OKCAmTFtaGJxRJl4jbH5EU8Gg9miw5hAz5aZWG6Szr6QlY8JUd0/KbL5tjLiLNCwA==",
+      "version": "2.7.1",
+      "resolved": "https://registry.npmjs.org/rev-static/-/rev-static-2.7.1.tgz",
+      "integrity": "sha512-l0Gwoh3m128nt1NRdjB++ezCJP1PEKWq2FRNBe4QCF/Axkk/oexM7Fbstl98lW8MgPqKSkwVssNlJ8RBeBQxSg==",
       "dev": true
     },
     "right-align": {
diff --git a/package.json b/package.json
index f764509..ab0fb06 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "less": "2.7.2",
     "react": "15.6.1",
     "react-dom": "15.6.1",
-    "rev-static": "2.6.0",
+    "rev-static": "2.7.1",
     "rimraf": "2.6.1",
     "rxjs": "5.4.1",
     "standard": "10.0.2",