diff --git a/spring-5-data-reactive/src/main/java/com/baeldung/couchbase/configuration/ReactiveCouchbaseConfiguration.java b/spring-5-data-reactive/src/main/java/com/baeldung/couchbase/configuration/ReactiveCouchbaseConfiguration.java
index 80c040df9f..3bd66a895a 100644
--- a/spring-5-data-reactive/src/main/java/com/baeldung/couchbase/configuration/ReactiveCouchbaseConfiguration.java
+++ b/spring-5-data-reactive/src/main/java/com/baeldung/couchbase/configuration/ReactiveCouchbaseConfiguration.java
@@ -17,11 +17,6 @@ public abstract class ReactiveCouchbaseConfiguration extends AbstractReactiveCou
         this.couchbaseProperties = couchbaseProperties;
     }
 
-    @Bean(name = BeanNames.COUCHBASE_INDEX_MANAGER)
-    public IndexManager indexManager() {
-        return new IndexManager(true, true, false);
-    }
-
     @Override
     protected List<String> getBootstrapHosts() {
         return couchbaseProperties.getBootstrapHosts();
diff --git a/spring-5-data-reactive/src/test/java/com/baeldung/couchbase/domain/repository/CouchbaseMockConfiguration.java b/spring-5-data-reactive/src/test/java/com/baeldung/couchbase/domain/repository/CouchbaseMockConfiguration.java
index 9d4108eccd..2a09fce4b0 100644
--- a/spring-5-data-reactive/src/test/java/com/baeldung/couchbase/domain/repository/CouchbaseMockConfiguration.java
+++ b/spring-5-data-reactive/src/test/java/com/baeldung/couchbase/domain/repository/CouchbaseMockConfiguration.java
@@ -10,7 +10,7 @@ import javax.annotation.PostConstruct;
 import javax.annotation.PreDestroy;
 import java.io.IOException;
 import java.io.UncheckedIOException;
-import java.util.List;
+import java.util.Collections;
 
 @TestConfiguration
 public class CouchbaseMockConfiguration {
@@ -27,7 +27,7 @@ public class CouchbaseMockConfiguration {
         bucketConfiguration.password = couchbaseProperties.getBucketPassword();
 
         try {
-            couchbaseMock = new CouchbaseMock(couchbaseProperties.getPort(), List.of(bucketConfiguration));
+            couchbaseMock = new CouchbaseMock(couchbaseProperties.getPort(), Collections.singletonList(bucketConfiguration));
         } catch (final IOException ex) {
             throw new UncheckedIOException(ex);
         }