diff --git a/modules/sspBCBidAdapter.js b/modules/sspBCBidAdapter.js
index 70db18c61e1..2b39faa02d8 100644
--- a/modules/sspBCBidAdapter.js
+++ b/modules/sspBCBidAdapter.js
@@ -12,7 +12,7 @@ const SYNC_URL = 'https://ssp.wp.pl/bidder/usersync';
 const NOTIFY_URL = 'https://ssp.wp.pl/bidder/notify';
 const GVLID = 676;
 const TMAX = 450;
-const BIDDER_VERSION = '5.9';
+const BIDDER_VERSION = '5.91';
 const DEFAULT_CURRENCY = 'PLN';
 const W = window;
 const { navigator } = W;
@@ -199,6 +199,22 @@ const applyClientHints = ortbRequest => {
   ortbRequest.user = { ...ortbRequest.user, ...ch };
 };
 
+const applyTopics = (validBidRequest, ortbRequest) => {
+  const userData = validBidRequest.ortb2?.user?.data || [];
+  const topicsData = userData.filter(dataObj => {
+    const segtax = dataObj.ext?.segtax;
+    return segtax >= 600 && segtax <= 609;
+  })[0];
+
+  // format topics obj for exchange
+  if (topicsData) {
+    topicsData.id = `${topicsData.ext.segtax}`;
+    topicsData.name = 'topics';
+    delete (topicsData.ext);
+    ortbRequest.user.data.push(topicsData);
+  }
+};
+
 const applyUserIds = (validBidRequest, ortbRequest) => {
   const eids = validBidRequest.userIdAsEids
   if (eids && eids.length) {
@@ -682,6 +698,7 @@ const spec = {
     applyGdpr(bidderRequest, payload);
     applyClientHints(payload);
     applyUserIds(validBidRequests[0], payload);
+    applyTopics(bidderRequest, payload);
 
     return {
       method: 'POST',