diff --git a/deployment/docker/ci/docker-compose.postgres.yml b/deployment/docker/ci/docker-compose.postgres.yml
index be57dc1a..17c142a0 100644
--- a/deployment/docker/ci/docker-compose.postgres.yml
+++ b/deployment/docker/ci/docker-compose.postgres.yml
@@ -20,7 +20,7 @@ services:
       SEMAPHORE_DB_USER: semaphore
       SEMAPHORE_DB_PASS: semaphore
       SEMAPHORE_DB_HOST: postgres
-      SEMAPHORE_DB_PORT: 3306
+      SEMAPHORE_DB_PORT: 5432
       SEMAPHORE_DB: semaphore
       SEMAPHORE_ADMIN_PASSWORD: password
       SEMAPHORE_ADMIN_NAME: "Developer"