diff --git a/mastodon_blocklist_deploy/cli.py b/mastodon_blocklist_deploy/cli.py
index 0b8d607..b049471 100644
--- a/mastodon_blocklist_deploy/cli.py
+++ b/mastodon_blocklist_deploy/cli.py
@@ -36,14 +36,14 @@ private_comment = "{instance.private_comment}"
         f.write(toml_str)
 
 
-def blocklist_json_to_instances(blocklist_json: str):
+def blocklist_json_to_instances(blocklist_json: str) -> [Instance]:
     instances = []
     for i in blocklist_json:
         instances.append(Instance(i))
     return instances
 
 
-def load_remote_blocklist(server: str, token: str):
+def load_remote_blocklist(server: str, token: str) -> [Instance]:
     headers = {
         f'Authorization': f'Bearer {token}',
     }