diff --git a/Dockerfile b/Dockerfile
index 80374059..02ac3df5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,6 @@ ENTRYPOINT ["/bin/sh", "-c", "java \
     -XX:MaxRAMPercentage=${MAX_HEAP_PERCENTAGE} \
     -Duser.timezone=UTC \
     -Delasticsearch.index.name=${INDEX_NAME} \
-    -Delasticsearch.cloud_optimized_index.name=${CO_INDEX_NAME} \
     -Delasticsearch.vocabs_index.name=${VOCABS_INDEX_NAME} \
     -Dapi.host=${HOST}:${PORT} \
     -Dserver.port=${PORT} \
diff --git a/server/src/main/resources/application.yaml b/server/src/main/resources/application.yaml
index b80c5845..5abe373e 100644
--- a/server/src/main/resources/application.yaml
+++ b/server/src/main/resources/application.yaml
@@ -27,8 +27,6 @@ elasticsearch:
     lightweightPageSize: 7000
   vocabs_index:
     name: vocabs_index
-  cloud_optimized_index:
-    name: es-coindexer-dev
   serverUrl: http://localhost:9200
   apiKey: <sample-api-key>
   search_as_you_type:
diff --git a/server/src/test/java/au/org/aodn/ogcapi/server/BaseTestClass.java b/server/src/test/java/au/org/aodn/ogcapi/server/BaseTestClass.java
index b7b0ea60..16587461 100644
--- a/server/src/test/java/au/org/aodn/ogcapi/server/BaseTestClass.java
+++ b/server/src/test/java/au/org/aodn/ogcapi/server/BaseTestClass.java
@@ -56,15 +56,9 @@ public class BaseTestClass {
     @Value("${elasticsearch.index.name}")
     protected String record_index_name;
 
-    @Value("${elasticsearch.cloud_optimized_index.name}")
-    protected String co_data_index_name;
-
     @Value("${elasticsearch.vocabs_index.name}")
     protected String vocabs_index_name;
 
-    @Value("${elasticsearch.cloud_optimized_index.name}")
-    protected String data_index_name;
-
     protected String getBasePath() {
         return "http://localhost:" + port + "/api/v1/ogc";
     }
@@ -79,8 +73,7 @@ protected String getExternalBasePath() {
     public void initSchemas() {
         schemas = List.of(
                 Map.of("name", record_index_name, "mapping", "portal_records_index_schema.json"),
-                Map.of("name", vocabs_index_name, "mapping", "vocabs_index_schema.json"),
-                Map.of("name", data_index_name, "mapping", "data_index_schema.json")
+                Map.of("name", vocabs_index_name, "mapping", "vocabs_index_schema.json")
         );
     }
 
@@ -252,10 +245,6 @@ protected void insertJsonToElasticRecordIndex(String... filenames) throws IOExce
         this.insertJsonToElasticIndex(record_index_name, filenames);
     }
 
-    protected void insertJsonToElasticCODataIndex(String... filenames) throws IOException {
-        this.insertJsonToElasticIndex(co_data_index_name, filenames);
-    }
-
     protected Response getClusterHealth() throws IOException {
         return transport.restClient().performRequest(new Request("GET", "/_cluster/health"));
     }