diff --git a/02-usecase/requirements.txt b/02-usecase/requirements.txt
index 493dcf8..d53826e 100644
--- a/02-usecase/requirements.txt
+++ b/02-usecase/requirements.txt
@@ -14,7 +14,7 @@ decorator==4.4.2
 dgraph==0.0.6
 dill==0.3.3
 flower==1.2.0
-future==0.18.2
+future==0.18.3
 grpcio==1.33.2
 grpclib==0.4.1
 h11==0.11.0