diff --git a/docker-compose.yml b/docker-compose.yml
index ba89f54..32bc4c7 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -20,6 +20,9 @@ services:
       POSTGRES_USER: ${DB_USER:-osint}
       POSTGRES_PASSWORD: ${DB_PASSWORD:-osint}
       POSTGRES_DB: ${DB_NAME:-osint_data}
+    # Ensure TimescaleDB is preloaded (conf.d drop-in may be ignored by the
+    # official image's runtime-generated postgresql.conf, so pass it explicitly).
+    command: ["-c", "shared_preload_libraries=timescaledb"]
     ports:
       - "127.0.0.1:5432:5432"
     volumes: