diff --git a/src/repositories/RedisNotificationRepository.ts b/src/repositories/RedisNotificationRepository.ts
index 1690c50..ad189bf 100644
--- a/src/repositories/RedisNotificationRepository.ts
+++ b/src/repositories/RedisNotificationRepository.ts
@@ -15,6 +15,10 @@ export class RedisNotificationRepository implements NotificationRepository {
   constructor(
     private redisClient = createClient({
       url: process.env.REDIS_URL,
+      socket: {
+          tls: (process.env.REDIS_URL?.match(/rediss:/) != null),
+          rejectUnauthorized: false,
+      }
     }),
   ) {
     this.getAllNotificationsForShuttleAndStopId = this.getAllNotificationsForShuttleAndStopId.bind(this);