diff --git a/database/schema/schema.sql b/database/schema/schema.sql
index a1cafdc..ee7f86e 100644
--- a/database/schema/schema.sql
+++ b/database/schema/schema.sql
@@ -36,7 +36,7 @@ CREATE TABLE users (
 CREATE TABLE refresh_tokens (
     id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
     user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
-    token VARCHAR(255) UNIQUE NOT NULL,
+    token UUID UNIQUE NOT NULL DEFAULT gen_random_uuid(),
     expires_at TIMESTAMP WITH TIME ZONE NOT NULL,
     created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
     revoked_at TIMESTAMP WITH TIME ZONE