diff --git a/README.md b/README.md
index 54b19da..e1dfffb 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,10 @@ list so other people can find it.
 
     $ npm install passport-oauth2
 
+## Publish package to cloudsmit
+- Login to cloudsmith
+- ```npm publish --access public```
+
 ## Usage
 
 #### Configure Strategy
diff --git a/lib/strategy.js b/lib/strategy.js
index 8575b72..04879e4 100644
--- a/lib/strategy.js
+++ b/lib/strategy.js
@@ -156,23 +156,28 @@ OAuth2Strategy.prototype.authenticate = function(req, options) {
     callbackURL: callbackURL
   }
 
-  if ((req.query && req.query.code) || (req.body && req.body.code)) {
+  if ((req.query && req.query.assertion) || (req.body && req.body.assertion)) {
     function loaded(err, ok, state) {
       if (err) { return self.error(err); }
       if (!ok) {
         return self.fail(state, 403);
       }
 
-      var code = (req.query && req.query.code) || (req.body && req.body.code);
+      var assertion = (req.query && req.query.assertion) || (req.body && req.body.assertion);
 
       var params = self.tokenParams(options);
-      params.grant_type = 'authorization_code';
+      params.grant_type = 'urn:ietf:params:oauth:grant-type:jwt-bearer';
+      params.assertion = assertion;
+      params.scope = self._scope.join(self._scopeSeparator);
       if (callbackURL) { params.redirect_uri = callbackURL; }
       if (typeof ok == 'string') { // PKCE
         params.code_verifier = ok;
       }
+      
+      var plainAuthorization = `${self._oauth2._clientId}:${self._oauth2._clientSecret}`;
+      self._oauth2._customHeaders['Authorization'] = `Basic ${btoa(plainAuthorization)}`;
 
-      self._oauth2.getOAuthAccessToken(code, params,
+      self._oauth2.getOAuthAccessToken(assertion, params,
         function(err, accessToken, refreshToken, params) {
           if (err) { return self.error(self._createOAuthError('Failed to obtain access token', err)); }
           if (!accessToken) { return self.error(new Error('Failed to obtain access token')); }
@@ -426,4 +431,4 @@ OAuth2Strategy.prototype._createOAuthError = function(message, err) {
 
 
 // Expose constructor.
-module.exports = OAuth2Strategy;
+module.exports = OAuth2Strategy;
\ No newline at end of file
diff --git a/package.json b/package.json
index 2805521..b375d4b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
-  "name": "passport-oauth2",
-  "version": "1.7.0",
+  "name": "@myob/passport-oauth2",
+  "version": "1.8.1",
   "description": "OAuth 2.0 authentication strategy for Passport.",
   "keywords": [
     "passport",