diff --git a/src/main/resources/bidder-config/colossus.yaml b/src/main/resources/bidder-config/colossus.yaml
index 8e5bf6632d4..9514160b5a2 100644
--- a/src/main/resources/bidder-config/colossus.yaml
+++ b/src/main/resources/bidder-config/colossus.yaml
@@ -1,6 +1,7 @@
 adapters:
   colossus:
     endpoint: http://colossusssp.com/?c=o&m=rtb
+    ortb-version: "2.6"
     aliases:
       colossusssp:
         enabled: false
diff --git a/src/test/java/org/prebid/server/it/ColossussspTest.java b/src/test/java/org/prebid/server/it/ColossussspTest.java
index a84d9799c41..98826e2702b 100644
--- a/src/test/java/org/prebid/server/it/ColossussspTest.java
+++ b/src/test/java/org/prebid/server/it/ColossussspTest.java
@@ -19,16 +19,16 @@ public class ColossussspTest extends IntegrationTest {
     public void openrtb2AuctionShouldRespondWithBidsFromColossusssp() throws IOException, JSONException {
         // given
         WIRE_MOCK_RULE.stubFor(post(urlPathEqualTo("/colossusssp-exchange"))
-                .withRequestBody(equalToJson(jsonFrom("openrtb2/colossus/aliases/test-colossusssp-bid-request.json")))
+                .withRequestBody(equalToJson(jsonFrom("openrtb2/colossusssp/test-colossusssp-bid-request.json")))
                 .willReturn(aResponse().withBody(
-                        jsonFrom("openrtb2/colossus/aliases/test-colossusssp-bid-response.json"))));
+                        jsonFrom("openrtb2/colossusssp/test-colossusssp-bid-response.json"))));
 
         // when
-        final Response response = responseFor("openrtb2/colossus/aliases/test-auction-colossusssp-request.json",
+        final Response response = responseFor("openrtb2/colossusssp/test-auction-colossusssp-request.json",
                 Endpoint.openrtb2_auction);
 
         // then
-        assertJsonEquals("openrtb2/colossus/aliases/test-auction-colossusssp-response.json", response,
+        assertJsonEquals("openrtb2/colossusssp/test-auction-colossusssp-response.json", response,
                 singletonList("colossusssp"));
     }
 }
diff --git a/src/test/resources/org/prebid/server/it/openrtb2/colossus/test-auction-colossus-request.json b/src/test/resources/org/prebid/server/it/openrtb2/colossus/test-auction-colossus-request.json
index 47047949eba..133c994bbbc 100644
--- a/src/test/resources/org/prebid/server/it/openrtb2/colossus/test-auction-colossus-request.json
+++ b/src/test/resources/org/prebid/server/it/openrtb2/colossus/test-auction-colossus-request.json
@@ -16,8 +16,6 @@
   ],
   "tmax": 5000,
   "regs": {
-    "ext": {
-      "gdpr": 0
-    }
+    "gdpr": 0
   }
 }
diff --git a/src/test/resources/org/prebid/server/it/openrtb2/colossus/test-colossus-bid-request.json b/src/test/resources/org/prebid/server/it/openrtb2/colossus/test-colossus-bid-request.json
index f41eed66c6a..b93c5ddcb0b 100644
--- a/src/test/resources/org/prebid/server/it/openrtb2/colossus/test-colossus-bid-request.json
+++ b/src/test/resources/org/prebid/server/it/openrtb2/colossus/test-colossus-bid-request.json
@@ -40,9 +40,7 @@
     "USD"
   ],
   "regs": {
-    "ext": {
-      "gdpr": 0
-    }
+    "gdpr": 0
   },
   "ext": {
     "prebid": {
diff --git a/src/test/resources/org/prebid/server/it/openrtb2/colossus/aliases/test-auction-colossusssp-request.json b/src/test/resources/org/prebid/server/it/openrtb2/colossusssp/test-auction-colossusssp-request.json
similarity index 87%
rename from src/test/resources/org/prebid/server/it/openrtb2/colossus/aliases/test-auction-colossusssp-request.json
rename to src/test/resources/org/prebid/server/it/openrtb2/colossusssp/test-auction-colossusssp-request.json
index bec0c44a62a..a5a940a755a 100644
--- a/src/test/resources/org/prebid/server/it/openrtb2/colossus/aliases/test-auction-colossusssp-request.json
+++ b/src/test/resources/org/prebid/server/it/openrtb2/colossusssp/test-auction-colossusssp-request.json
@@ -16,8 +16,6 @@
   ],
   "tmax": 5000,
   "regs": {
-    "ext": {
-      "gdpr": 0
-    }
+    "gdpr": 0
   }
 }
diff --git a/src/test/resources/org/prebid/server/it/openrtb2/colossus/aliases/test-auction-colossusssp-response.json b/src/test/resources/org/prebid/server/it/openrtb2/colossusssp/test-auction-colossusssp-response.json
similarity index 100%
rename from src/test/resources/org/prebid/server/it/openrtb2/colossus/aliases/test-auction-colossusssp-response.json
rename to src/test/resources/org/prebid/server/it/openrtb2/colossusssp/test-auction-colossusssp-response.json
diff --git a/src/test/resources/org/prebid/server/it/openrtb2/colossus/aliases/test-colossusssp-bid-request.json b/src/test/resources/org/prebid/server/it/openrtb2/colossusssp/test-colossusssp-bid-request.json
similarity index 96%
rename from src/test/resources/org/prebid/server/it/openrtb2/colossus/aliases/test-colossusssp-bid-request.json
rename to src/test/resources/org/prebid/server/it/openrtb2/colossusssp/test-colossusssp-bid-request.json
index f41eed66c6a..b93c5ddcb0b 100644
--- a/src/test/resources/org/prebid/server/it/openrtb2/colossus/aliases/test-colossusssp-bid-request.json
+++ b/src/test/resources/org/prebid/server/it/openrtb2/colossusssp/test-colossusssp-bid-request.json
@@ -40,9 +40,7 @@
     "USD"
   ],
   "regs": {
-    "ext": {
-      "gdpr": 0
-    }
+    "gdpr": 0
   },
   "ext": {
     "prebid": {
diff --git a/src/test/resources/org/prebid/server/it/openrtb2/colossus/aliases/test-colossusssp-bid-response.json b/src/test/resources/org/prebid/server/it/openrtb2/colossusssp/test-colossusssp-bid-response.json
similarity index 100%
rename from src/test/resources/org/prebid/server/it/openrtb2/colossus/aliases/test-colossusssp-bid-response.json
rename to src/test/resources/org/prebid/server/it/openrtb2/colossusssp/test-colossusssp-bid-response.json