diff --git a/roles/matrix-synapse/defaults/main.yml b/roles/matrix-synapse/defaults/main.yml
index dcd42ab83..9e65d4218 100644
--- a/roles/matrix-synapse/defaults/main.yml
+++ b/roles/matrix-synapse/defaults/main.yml
@@ -266,18 +266,18 @@ matrix_synapse_workers_enabled_list: []
 
 # Default list of workers to spawn
 matrix_synapse_workers_enabled_list:
-  - { worker: synchrotron, port: 8082 }
-  - { worker: synchrotron, port: 8083 }
-  - { worker: synchrotron, port: 8084 }
-  - { worker: appservice, port: 8085 }
-  - { worker: client_reader, port: 8086 }
-  - { worker: event_creator, port: 8087 }
-  - { worker: federation_reader, port: 8088 }
-  - { worker: federation_sender, port: 8089 }
-  - { worker: frontend_proxy, port: 8090 }
-  - { worker: media_repository, port: 8091 }
-  - { worker: pusher, port: 8092 }
-  - { worker: user_dir, port: 8093 }
+  - { worker: synchrotron, port: 18082 }
+  - { worker: synchrotron, port: 18083 }
+  - { worker: synchrotron, port: 18084 }
+  - { worker: appservice, port: 18085 }
+  - { worker: client_reader, port: 18086 }
+  - { worker: event_creator, port: 18087 }
+  - { worker: federation_reader, port: 18088 }
+  - { worker: federation_sender, port: 18089 }
+  - { worker: frontend_proxy, port: 18090 }
+  - { worker: media_repository, port: 18091 }
+  - { worker: pusher, port: 18092 }
+  - { worker: user_dir, port: 18093 }
 
 # The list of available workers (2020-04-14)
 matrix_synapse_workers_avail_list: