diff --git a/README.md b/README.md
index e46206a..83f70e0 100644
--- a/README.md
+++ b/README.md
@@ -19,9 +19,9 @@ the visualization power of Kibana.
 
 Based on the official Docker images from Elastic:
 
-* [Elasticsearch](https://github.com/elastic/elasticsearch/tree/master/distribution/docker)
-* [Logstash](https://github.com/elastic/logstash/tree/master/docker)
-* [Kibana](https://github.com/elastic/kibana/tree/master/src/dev/build/tasks/os_packages/docker_generator)
+* [Elasticsearch](https://github.com/elastic/elasticsearch/tree/main/distribution/docker)
+* [Logstash](https://github.com/elastic/logstash/tree/main/docker)
+* [Kibana](https://github.com/elastic/kibana/tree/main/src/dev/build/tasks/os_packages/docker_generator)
 
 Other available stack variants:
 
diff --git a/elasticsearch/config/elasticsearch.yml b/elasticsearch/config/elasticsearch.yml
index 3e82379..b2147a4 100644
--- a/elasticsearch/config/elasticsearch.yml
+++ b/elasticsearch/config/elasticsearch.yml
@@ -1,6 +1,6 @@
 ---
 ## Default Elasticsearch configuration from Elasticsearch base image.
-## https://github.com/elastic/elasticsearch/blob/master/distribution/docker/src/docker/config/elasticsearch.yml
+## https://github.com/elastic/elasticsearch/blob/main/distribution/docker/src/docker/config/elasticsearch.yml
 #
 cluster.name: "docker-cluster"
 network.host: 0.0.0.0
diff --git a/extensions/filebeat/config/filebeat.yml b/extensions/filebeat/config/filebeat.yml
index dfbd0c3..9512a2d 100644
--- a/extensions/filebeat/config/filebeat.yml
+++ b/extensions/filebeat/config/filebeat.yml
@@ -1,5 +1,5 @@
 ## Filebeat configuration
-## https://github.com/elastic/beats/blob/master/deploy/docker/filebeat.docker.yml
+## https://github.com/elastic/beats/blob/main/deploy/docker/filebeat.docker.yml
 #
 
 filebeat.config:
diff --git a/extensions/metricbeat/config/metricbeat.yml b/extensions/metricbeat/config/metricbeat.yml
index f7c07ca..ccdde4c 100644
--- a/extensions/metricbeat/config/metricbeat.yml
+++ b/extensions/metricbeat/config/metricbeat.yml
@@ -1,5 +1,5 @@
 ## Metricbeat configuration
-## https://github.com/elastic/beats/blob/master/deploy/docker/metricbeat.docker.yml
+## https://github.com/elastic/beats/blob/main/deploy/docker/metricbeat.docker.yml
 #
 
 metricbeat.config:
diff --git a/kibana/config/kibana.yml b/kibana/config/kibana.yml
index 07ab33e..9eb2099 100644
--- a/kibana/config/kibana.yml
+++ b/kibana/config/kibana.yml
@@ -1,6 +1,6 @@
 ---
 ## Default Kibana configuration from Kibana base image.
-## https://github.com/elastic/kibana/blob/master/src/dev/build/tasks/os_packages/docker_generator/templates/kibana_yml.template.ts
+## https://github.com/elastic/kibana/blob/main/src/dev/build/tasks/os_packages/docker_generator/templates/kibana_yml.template.ts
 #
 server.name: kibana
 server.host: 0.0.0.0
diff --git a/logstash/config/logstash.yml b/logstash/config/logstash.yml
index 47722ea..58e996b 100644
--- a/logstash/config/logstash.yml
+++ b/logstash/config/logstash.yml
@@ -1,5 +1,5 @@
 ---
 ## Default Logstash configuration from Logstash base image.
-## https://github.com/elastic/logstash/blob/master/docker/data/logstash/config/logstash-full.yml
+## https://github.com/elastic/logstash/blob/main/docker/data/logstash/config/logstash-full.yml
 #
 http.host: "0.0.0.0"