diff --git a/src/test/java/org/prebid/server/auction/ExchangeServiceTest.java b/src/test/java/org/prebid/server/auction/ExchangeServiceTest.java
index 97427d15cab..90453e5d872 100644
--- a/src/test/java/org/prebid/server/auction/ExchangeServiceTest.java
+++ b/src/test/java/org/prebid/server/auction/ExchangeServiceTest.java
@@ -1192,13 +1192,47 @@ public void shouldCleanImpExtContextDataWhenFirstPartyDataNotPermittedForBidder(
         exchangeService.holdAuction(givenRequestContext(bidRequest));
 
         // then
-        final BidRequest capturedRequestExt = captureBidRequest();
-        assertThat(capturedRequestExt.getImp())
+        final BidRequest capturedRequest = captureBidRequest();
+        assertThat(capturedRequest.getImp())
                 .extracting(Imp::getExt)
                 .extracting(impExtNode -> impExtNode.get("context"))
                 .containsOnly(mapper.createObjectNode().put("otherField", "value"));
     }
 
+    @Test
+    public void shouldDeepCopyImpExtContextToEachImpressionAndNotRemoveDataForAllWhenDeprecatedOnlyOneBidder() {
+        // given
+        final ObjectNode impExt = mapper.createObjectNode().put("someBidder", 1).put("deprecatedBidder", 2)
+                .set("context", mapper.createObjectNode().put("data", "data").put("otherField", "value"));
+        final BidRequest bidRequest = givenBidRequest(singletonList(Imp.builder()
+                        .id("impId")
+                        .banner(Banner.builder()
+                                .format(singletonList(Format.builder().w(400).h(300).build()))
+                                .build()).ext(impExt).build()),
+                builder -> builder.ext(ExtRequest.of(ExtRequestPrebid.builder()
+                        .data(ExtRequestPrebidData.of(singletonList("someBidder")))
+                        .build())));
+        given(httpBidderRequester.requestBids(any(), any(), any(), anyBoolean()))
+                .willReturn(Future.succeededFuture(givenSeatBid(singletonList(
+                        givenBid(Bid.builder().price(TEN).build())))));
+
+        // when
+        exchangeService.holdAuction(givenRequestContext(bidRequest));
+
+        // then
+        final ArgumentCaptor<BidRequest> bidRequestCaptor = ArgumentCaptor.forClass(BidRequest.class);
+        verify(httpBidderRequester, times(2)).requestBids(any(), bidRequestCaptor.capture(), any(), anyBoolean());
+        assertThat(bidRequestCaptor.getAllValues())
+                .flatExtracting(BidRequest::getImp)
+                .extracting(Imp::getExt)
+                .extracting(impExtNode -> impExtNode.get("context"))
+                .containsOnly(
+                        // data erased for deprecatedBidder
+                        mapper.createObjectNode().put("otherField", "value"),
+                        // data present for someBidder
+                        mapper.createObjectNode().put("data", "data").put("otherField", "value"));
+    }
+
     @Test
     public void shouldSetUserBuyerIdsFromUserExtPrebidAndClearPrebidBuyerIdsAfterwards() {
         // given
@@ -1241,8 +1275,8 @@ public void shouldCleanRequestExtPrebidData() {
         exchangeService.holdAuction(givenRequestContext(bidRequest));
 
         // then
-        final ExtRequest capturedRequestExt = captureBidRequest().getExt();
-        assertThat(capturedRequestExt).isEqualTo(ExtRequest.of(ExtRequestPrebid.builder()
+        final ExtRequest capturedRequest = captureBidRequest().getExt();
+        assertThat(capturedRequest).isEqualTo(ExtRequest.of(ExtRequestPrebid.builder()
                 .aliases(singletonMap("someBidder", "alias_should_stay"))
                 .auctiontimestamp(1000L)
                 .build()));