diff --git a/modules/gridBidAdapter.js b/modules/gridBidAdapter.js
index b300c5c58c0..aa6c0ab668f 100644
--- a/modules/gridBidAdapter.js
+++ b/modules/gridBidAdapter.js
@@ -94,8 +94,7 @@ export const spec = {
     let {bidderRequestId, auctionId, gdprConsent, uspConsent, timeout, refererInfo} = bidderRequest || {};
 
     const referer = refererInfo ? encodeURIComponent(refererInfo.page) : '';
-    const bidderTimeout = config.getConfig('bidderTimeout') || timeout;
-    const tmax = timeout ? Math.min(bidderTimeout, timeout) : bidderTimeout;
+    const tmax = timeout || config.getConfig('bidderTimeout');
     const imp = [];
     const bidsMap = {};
     const requests = [];
diff --git a/test/spec/modules/gridBidAdapter_spec.js b/test/spec/modules/gridBidAdapter_spec.js
index 4b93c287fee..d411f33ab50 100644
--- a/test/spec/modules/gridBidAdapter_spec.js
+++ b/test/spec/modules/gridBidAdapter_spec.js
@@ -840,24 +840,6 @@ describe('TheMediaGrid Adapter', function () {
       expect(payload.site.content.id).to.equal(contentId);
     });
 
-    it('should be right tmax when timeout in config is less then timeout in bidderRequest', function() {
-      const getConfigStub = sinon.stub(config, 'getConfig').callsFake(
-        arg => arg === 'bidderTimeout' ? 2000 : null);
-      const [request] = spec.buildRequests([bidRequests[0]], bidderRequest);
-      expect(request.data).to.be.an('string');
-      const payload = parseRequest(request.data);
-      expect(payload.tmax).to.equal(2000);
-      getConfigStub.restore();
-    });
-    it('should be right tmax when timeout in bidderRequest is less then timeout in config', function() {
-      const getConfigStub = sinon.stub(config, 'getConfig').callsFake(
-        arg => arg === 'bidderTimeout' ? 5000 : null);
-      const [request] = spec.buildRequests([bidRequests[0]], bidderRequest);
-      expect(request.data).to.be.an('string');
-      const payload = parseRequest(request.data);
-      expect(payload.tmax).to.equal(3000);
-      getConfigStub.restore();
-    });
     it('should contain regs.coppa if coppa is true in config', function () {
       const getConfigStub = sinon.stub(config, 'getConfig').callsFake(
         arg => arg === 'coppa' ? true : null);