diff --git a/kafka-connect-http/src/test/java/com/github/castorm/kafka/connect/http/StreamkapElasticConnectorTest.java b/kafka-connect-http/src/test/java/com/github/castorm/kafka/connect/http/StreamkapElasticConnectorTest.java
index 3729e2a..4d6d63a 100644
--- a/kafka-connect-http/src/test/java/com/github/castorm/kafka/connect/http/StreamkapElasticConnectorTest.java
+++ b/kafka-connect-http/src/test/java/com/github/castorm/kafka/connect/http/StreamkapElasticConnectorTest.java
@@ -10,6 +10,7 @@
 import java.io.OutputStream;
 import java.net.HttpURLConnection;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.time.Instant;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -26,13 +27,13 @@
 import org.apache.kafka.connect.source.SourceRecord;
 import org.apache.kafka.connect.source.SourceTaskContext;
 import org.apache.kafka.connect.storage.OffsetStorageReader;
+import org.jetbrains.annotations.NotNull;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 import org.opensearch.testcontainers.OpensearchContainer;
 import org.testcontainers.utility.DockerImageName;
 
-import com.github.castorm.kafka.connect.http.model.Offset;
 import com.github.castorm.kafka.connect.http.model.Partition;
 
 import lombok.extern.slf4j.Slf4j;
@@ -79,6 +80,56 @@ private Map<String, String> getConf() {
         return props;
     }
 
+    private String createAliases(Integer nbIndexes) throws Exception {
+        String url = opensearch.getHttpHostAddress() + "/_aliases";
+        HttpURLConnection con = (HttpURLConnection) new URL(url).openConnection();
+        con.setRequestMethod("POST");
+        con.setRequestProperty("Content-Type", "application/json");
+        con.setRequestProperty("Accept", "application/json");
+        con.setDoOutput(true);
+
+        ArrayList<String> aliases = new ArrayList<>();
+        StringBuilder input = getAliasesRequestInput(nbIndexes, aliases);
+
+        try (OutputStream os = con.getOutputStream()) {
+            byte[] byteInput = input.toString().getBytes(StandardCharsets.UTF_8);
+            os.write(byteInput, 0, byteInput.length);
+
+            assertThat(con.getResponseCode()).isEqualTo(200);
+        }
+
+        return StringUtils.join(aliases, ",");
+    }
+
+    @NotNull
+    private static StringBuilder getAliasesRequestInput(Integer nbIndexes, ArrayList<String> aliases) {
+        StringBuilder input = new StringBuilder("{\"actions\": [ ");
+        for (int i = 0; i < nbIndexes; i++) {
+                String alias = "alias-" + i;
+                input.append("{\"add\": {\"index\": \"index-").append(i)
+                    .append("\",\"alias\": \"").append(alias).append("\"}}, ");
+                aliases.add(alias);
+        }
+        input.replace(input.length() - 2, input.length() - 1, "");
+        input.append("]}");
+        return input;
+    }
+
+    private void deleteAliases(String indexes, String aliases) throws Exception {
+        String[] aliasesList = aliases.split(",");
+        String[] indexesList = indexes.split(",");
+        for (int i = 0; i < aliasesList.length; i++) {
+            String url = opensearch.getHttpHostAddress() + "/" + indexesList[i] + "/_alias/" + aliasesList[i];
+            HttpURLConnection con = (HttpURLConnection) new URL(url).openConnection();
+            con.setRequestMethod("DELETE");
+            con.setRequestProperty("Content-Type", "application/json");
+            con.setRequestProperty("Accept", "application/json");
+            con.setDoOutput(true);
+
+            assertThat(con.getResponseCode()).isEqualTo(200);
+        }
+    }
+
     private String loadTestData(int nbIndexes) throws Exception {
         return loadTestData(nbIndexes, 1);
     }
@@ -155,10 +206,16 @@ void testNominal() throws Exception {
 
     @Test
     void testTimestamps() throws Exception {
-        String endpointIncludeList = loadTestData(4, 4);
+        // before
+        String indexes = loadTestData(4, 4);
+        String aliases = createAliases(4);
         Map<String, String> config = getConf();
-        config.put(HttpSourceConnectorConfig.ENDPOINT_INCLUDE_LIST, endpointIncludeList);
+        config.put(HttpSourceConnectorConfig.ENDPOINT_INCLUDE_LIST, aliases);
+
+        // when
         List<SourceRecord> records = runTasks(config, 4, 4);
+
+        // then
         assertThat(records).hasSize(16);
         assertThat(records.get(0).value()).isInstanceOf(Struct.class);
         assertThat(((Struct) records.get(0).value()).get("_streamkap_value").toString()).contains("my_timestamp");
@@ -171,6 +228,9 @@ void testTimestamps() throws Exception {
                         "1-0", "1-1", "1-2", "1-3",
                         "2-0", "2-1", "2-2", "2-3",
                         "3-0", "3-1", "3-2", "3-3");
+
+        // after
+        deleteAliases(indexes, aliases);
     }
 
     @Test