diff --git a/ozgcloud-elasticsearch-operator/src/test/java/de/ozgcloud/operator/common/elasticsearch/ElasticsearchTestClient.java b/ozgcloud-elasticsearch-operator/src/test/java/de/ozgcloud/operator/common/elasticsearch/ElasticsearchTestClient.java
index 5376ee64b3d486af904218807fefa3633da0d955..a7f6a3acb6690e130b009dc44e8161734af2ea01 100644
--- a/ozgcloud-elasticsearch-operator/src/test/java/de/ozgcloud/operator/common/elasticsearch/ElasticsearchTestClient.java
+++ b/ozgcloud-elasticsearch-operator/src/test/java/de/ozgcloud/operator/common/elasticsearch/ElasticsearchTestClient.java
@@ -43,7 +43,7 @@ public class ElasticsearchTestClient {
 	private static final String USER = "elastic";
 	private static final String PASSWORD = "s3cret";
 	private static final int PORT = 9200;
-	private static final String SCHEME = "http";
+	private static final String SCHEME = "https";
 	private static final Duration STARTUP_TIMEOUT = Duration.of(2, ChronoUnit.MINUTES);
 	 
 	public static final ElasticsearchContainer ELASTICSEARCH_CONTAINER = new ElasticsearchContainer(IMAGE_NAME)
@@ -51,7 +51,7 @@ public class ElasticsearchTestClient {
 			.withExposedPorts(PORT)
 			.withPassword(PASSWORD)
 			.withStartupTimeout(STARTUP_TIMEOUT)
-			.withMinimumRunningDuration(Duration.ofSeconds(5));
+			.withMinimumRunningDuration(Duration.ofMinutes(5));
 
 	public static ElasticsearchClient create() {
 		var transport = new RestClientTransport(buildRestClient(), new JacksonJsonpMapper());