diff --git a/util/set-version.js b/util/bump-version.js
similarity index 87%
rename from util/set-version.js
rename to util/bump-version.js
index 0eaa9f4f..36ac3978 100644
--- a/util/set-version.js
+++ b/util/bump-version.js
@@ -3,7 +3,9 @@
 const fs = require('fs');
 const path = require('path');
 
-const version = process.argv[2];
+const releaseNotesContents = fs.readFileSync('release-notes.md', 'utf8');
+
+const version = releaseNotesContents.match(/\d+\.\d+\.\d+/)[0];
 if (!/^\d+\.\d+\.\d+$/.test(version)) {
     console.error('Bad version. Usage: node set-version.js 1.2.3');
     process.exit(1);