diff --git a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/cassandra/CassandraProperties.java b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/cassandra/CassandraProperties.java
index b21e5bd5350..8181f499aff 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/cassandra/CassandraProperties.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/cassandra/CassandraProperties.java
@@ -212,7 +212,7 @@ public class CassandraProperties {
 		 * Timeout to use for internal queries that run as part of the initialization
 		 * process, just after a connection is opened.
 		 */
-		private Duration initQueryTimeout = Duration.ofMillis(500);
+		private Duration initQueryTimeout = Duration.ofSeconds(5);
 
 		public Duration getConnectTimeout() {
 			return this.connectTimeout;
@@ -302,7 +302,7 @@ public class CassandraProperties {
 		/**
 		 * Idle timeout before an idle connection is removed.
 		 */
-		private Duration idleTimeout = Duration.ofSeconds(120);
+		private Duration idleTimeout = Duration.ofSeconds(5);
 
 		/**
 		 * Heartbeat interval after which a message is sent on an idle connection to make