diff --git a/data/avro-schema/src/main/resources/avro/net/corda/data/certificates/rpc/request/RetrieveCertificateRpcRequest.avsc b/data/avro-schema/src/main/resources/avro/net/corda/data/certificates/rpc/request/RetrieveCertificateRpcRequest.avsc
index ae2bad5c14..a772f100c9 100644
--- a/data/avro-schema/src/main/resources/avro/net/corda/data/certificates/rpc/request/RetrieveCertificateRpcRequest.avsc
+++ b/data/avro-schema/src/main/resources/avro/net/corda/data/certificates/rpc/request/RetrieveCertificateRpcRequest.avsc
@@ -8,6 +8,14 @@
       "name": "alias",
       "doc": "The certificate alias.",
       "type": "string"
+    },
+    {
+      "name": "requestId",
+      "doc": "ID of the request.",
+      "type": {
+        "type": "string",
+        "logicalType": "uuid"
+      }
     }
   ]
 }
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
index 9a90ea9303..afb9803d90 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -5,7 +5,7 @@ cordaProductVersion = 5.3.0
 # NOTE: update this each time this module contains a breaking change
 ## NOTE: currently this is a top level revision, so all API versions will line up, but this could be moved to
 ##   a per module property in which case module versions can change independently.
-cordaApiRevision = 14
+cordaApiRevision = 15
 
 # Main
 kotlin.stdlib.default.dependency = false