diff --git a/modules/freewheel-sspBidAdapter.js b/modules/freewheel-sspBidAdapter.js
index 2894f414871..c5fb813540e 100644
--- a/modules/freewheel-sspBidAdapter.js
+++ b/modules/freewheel-sspBidAdapter.js
@@ -350,6 +350,7 @@ export const spec = {
         timestamp: timeInMillis,
         _fw_bidfloor: (bidfloor > 0) ? bidfloor : 0,
         _fw_bidfloorcur: (bidfloor > 0) ? getFloorCurrency(config) : '',
+        pbjs_version: '$prebid.version$',
         pKey: keyCode
       };
 
diff --git a/test/spec/modules/freewheel-sspBidAdapter_spec.js b/test/spec/modules/freewheel-sspBidAdapter_spec.js
index cd406afa5d8..fe07dc1e719 100644
--- a/test/spec/modules/freewheel-sspBidAdapter_spec.js
+++ b/test/spec/modules/freewheel-sspBidAdapter_spec.js
@@ -4,6 +4,7 @@ import { newBidder } from 'src/adapters/bidderFactory.js';
 import { createEidsArray } from 'modules/userId/eids.js';
 
 const ENDPOINT = '//ads.stickyadstv.com/www/delivery/swfIndex.php';
+const PREBID_VERSION = '$prebid.version$';
 
 describe('freewheelSSP BidAdapter Test', () => {
   const adapter = newBidder(spec);
@@ -166,6 +167,7 @@ describe('freewheelSSP BidAdapter Test', () => {
       expect(payload.componentId).to.equal('prebid');
       expect(payload.componentSubId).to.equal('mustang');
       expect(payload.playerSize).to.equal('300x600');
+      expect(payload.pbjs_version).to.equal(PREBID_VERSION);
     });
 
     it('should return a properly formatted request with schain defined', function () {