diff --git a/README.md b/README.md
index 2cf96f1..0491a82 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,10 @@ Report issues for this extension in the [ocds-extensions repository](https://git
 
 ## Changelog
 
+### v1.1.4
+
+* Update `mergeStrategy` property to `wholeListMerge` property
+
 ### v1.1.3
 
 * Disallow `ParticipationFee.type` from having null in its array of strings
diff --git a/release-schema.json b/release-schema.json
index a7425be..196526c 100644
--- a/release-schema.json
+++ b/release-schema.json
@@ -61,11 +61,11 @@
           "title": "Participation fees",
           "description": "Any fees applicable to bidders wishing to participate in the tender process. Fees may apply for access to bidding documents, for the submission of bids or there may be a win fee payable by the successful bidder.",
           "type": "array",
-          "mergeStrategy": "ocdsVersion",
           "items": {
             "$ref": "#/definitions/ParticipationFee"
           },
-          "uniqueItems": true
+          "uniqueItems": true,
+          "wholeListMerge": true
         }
       }
     }