diff --git a/docker-compose.yml b/docker-compose.yml
index 8d15eac..4d5e487 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -192,7 +192,7 @@ services:
       S3_WORKSPACE_BUCKET: ${S3_WORKSPACE_BUCKET:-workspace}
       S3_VERSION_BUCKET: ${S3_VERSION_BUCKET:-version}
       S3_RUN_LOG_BUCKET: ${S3_RUN_LOG_BUCKET:-run-log}
-      READINESS_TARGETS: ${MYSQL_HOST:?MYSQL_HOST is required}:${MYSQL_PORT:-3306},${S3_HOST:-s3}:${S3_PORT:-9000},backend:8000
+      READINESS_TARGETS: ${MYSQL_HOST:?MYSQL_HOST is required}:${MYSQL_PORT:-3306},backend:8000
     depends_on:
       backend:
         condition: service_healthy