diff --git a/modules/yahoosspBidAdapter.js b/modules/yahoosspBidAdapter.js
index 101cb0ca9e3..73a991ec79a 100644
--- a/modules/yahoosspBidAdapter.js
+++ b/modules/yahoosspBidAdapter.js
@@ -6,7 +6,7 @@ import { Renderer } from '../src/Renderer.js';
 
 const INTEGRATION_METHOD = 'prebid.js';
 const BIDDER_CODE = 'yahoossp';
-const ADAPTER_VERSION = '1.0.1';
+const ADAPTER_VERSION = '1.0.2';
 const PREBID_VERSION = '$prebid.version$';
 const DEFAULT_BID_TTL = 300;
 const TEST_MODE_DCN = '8a969516017a7a396ec539d97f540011';
@@ -359,6 +359,10 @@ function appendImpObject(bid, openRtbObject) {
       impObject.ext.data = bid.ortb2Imp.ext.data;
     };
 
+    if (deepAccess(bid, 'ortb2Imp.instl') && isNumber(bid.ortb2Imp.instl) && (bid.ortb2Imp.instl === 1)) {
+      impObject.instl = bid.ortb2Imp.instl;
+    };
+
     if (getPubIdMode(bid) === false) {
       impObject.tagid = bid.params.pos;
       impObject.ext.pos = bid.params.pos;
diff --git a/test/spec/modules/yahoosspBidAdapter_spec.js b/test/spec/modules/yahoosspBidAdapter_spec.js
index 5eb82b399cc..e0af8784605 100644
--- a/test/spec/modules/yahoosspBidAdapter_spec.js
+++ b/test/spec/modules/yahoosspBidAdapter_spec.js
@@ -11,7 +11,7 @@ const DEFAULT_AD_UNIT_CODE = '/19968336/header-bid-tag-1';
 const DEFAULT_AD_UNIT_TYPE = 'banner';
 const DEFAULT_PARAMS_BID_OVERRIDE = {};
 const DEFAULT_VIDEO_CONTEXT = 'instream';
-const ADAPTER_VERSION = '1.0.1';
+const ADAPTER_VERSION = '1.0.2';
 const PREBID_VERSION = '$prebid.version$';
 const INTEGRATION_METHOD = 'prebid.js';
 
@@ -656,6 +656,33 @@ describe('YahooSSP Bid Adapter:', () => {
       const data = spec.buildRequests(validBidRequests, bidderRequest)[0].data;
       expect(data.imp[0].ext.data).to.deep.equal(validBidRequests[0].ortb2Imp.ext.data);
     });
+    // adUnit.ortb2Imp.instl
+    it(`should allow adUnit.ortb2Imp.instl numeric boolean "1" to be added to the bid-request`, () => {
+      let { validBidRequests, bidderRequest } = generateBuildRequestMock({})
+      validBidRequests[0].ortb2Imp = {
+        instl: 1
+      };
+      const data = spec.buildRequests(validBidRequests, bidderRequest)[0].data;
+      expect(data.imp[0].instl).to.deep.equal(validBidRequests[0].ortb2Imp.instl);
+    });
+
+    it(`should prevent adUnit.ortb2Imp.instl boolean "true" to be added to the bid-request`, () => {
+      let { validBidRequests, bidderRequest } = generateBuildRequestMock({})
+      validBidRequests[0].ortb2Imp = {
+        instl: true
+      };
+      const data = spec.buildRequests(validBidRequests, bidderRequest)[0].data;
+      expect(data.imp[0].instl).to.not.exist;
+    });
+
+    it(`should prevent adUnit.ortb2Imp.instl boolean "false" to be added to the bid-request`, () => {
+      let { validBidRequests, bidderRequest } = generateBuildRequestMock({})
+      validBidRequests[0].ortb2Imp = {
+        instl: false
+      };
+      const data = spec.buildRequests(validBidRequests, bidderRequest)[0].data;
+      expect(data.imp[0].instl).to.not.exist;
+    });
   });
 
   describe('e2etest mode support:', () => {