diff --git a/kafka-streams-samples/kafka-streams-interactive-query-advanced/src/main/java/kafka/streams/interactive/query/KafkaStreamsInteractiveQuerySample.java b/kafka-streams-samples/kafka-streams-interactive-query-advanced/src/main/java/kafka/streams/interactive/query/KafkaStreamsInteractiveQuerySample.java
index 91885b5..0eefe17 100644
--- a/kafka-streams-samples/kafka-streams-interactive-query-advanced/src/main/java/kafka/streams/interactive/query/KafkaStreamsInteractiveQuerySample.java
+++ b/kafka-streams-samples/kafka-streams-interactive-query-advanced/src/main/java/kafka/streams/interactive/query/KafkaStreamsInteractiveQuerySample.java
@@ -200,7 +200,7 @@ public class KafkaStreamsInteractiveQuerySample {
 				logger.info("Top Five songs request served from different host: " + hostInfo);
 				RestTemplate restTemplate = new RestTemplate();
 				return restTemplate.postForObject(
-						String.format("http://%s:%d/%s", hostInfo.host(),
+						String.format("https://%s:%d/%s", hostInfo.host(),
 								hostInfo.port(), "charts/top-five?genre=Punk"), "punk", List.class);
 			}
 		}
@@ -235,7 +235,7 @@ public class KafkaStreamsInteractiveQuerySample {
 					logger.info("Song info request served from different host: " + hostInfo);
 					RestTemplate restTemplate = new RestTemplate();
 					SongBean song = restTemplate.postForObject(
-							String.format("http://%s:%d/%s", hostInfo.host(),
+							String.format("https://%s:%d/%s", hostInfo.host(),
 									hostInfo.port(), "song/idx?id=" + songPlayCount.getSongId()),  "id", SongBean.class);
 					results.add(new SongPlayCountBean(song.getArtist(),song.getAlbum(), song.getName(),
 							songPlayCount.getPlays()));
diff --git a/processor-samples/polled-consumer/README.md b/processor-samples/polled-consumer/README.md
index d987fd3..c15f5b6 100644
--- a/processor-samples/polled-consumer/README.md
+++ b/processor-samples/polled-consumer/README.md
@@ -18,7 +18,7 @@ It uses a Polled Consumer (rather than a message-driven `@StreamListener`).
 * PolledConsumerApplicationTests - the test case
 
 The `spring-kafka-test` dependency added to the `pom.xml` puts the `KafkaEmbedded` JUnit `@Rule` on the class path.
-Refer to the [Spring for Apache Kafka Reference Manual](http://docs.spring.io/spring-kafka/reference/htmlsingle/#testing) for more information about this.
+Refer to the [Spring for Apache Kafka Reference Manual](https://docs.spring.io/spring-kafka/reference/htmlsingle/#testing) for more information about this.
 Notice how the `@BeforeClass` method sets up the Boot and binder properties to locate the servers.
 
 See the test method for the details on interacting with Embedded Kafka.
diff --git a/testing-samples/test-embedded-kafka/README.adoc b/testing-samples/test-embedded-kafka/README.adoc
index a49727d..62b9b29 100644
--- a/testing-samples/test-embedded-kafka/README.adoc
+++ b/testing-samples/test-embedded-kafka/README.adoc
@@ -17,7 +17,7 @@ This sample is a Spring Boot application that uses Spring Cloud Stream to receiv
 * EmbeddedKafkaApplicationTests - the test case
 
 The `spring-kafka-test` dependency added to the `pom.xml` puts the `KafkaEmbedded` JUnit `@Rule` on the class path.
-Refer to the [Spring for Apache Kafka Reference Manual](http://docs.spring.io/spring-kafka/reference/htmlsingle/#testing) for more information about this.
+Refer to the [Spring for Apache Kafka Reference Manual](https://docs.spring.io/spring-kafka/reference/htmlsingle/#testing) for more information about this.
 Notice how the `@BeforeClass` method sets up the Boot and binder properties to locate the servers.
 
 See the test method for the details on interacting with Embedded Kafka.