From 352a6dba896dbf8cbc4956281d2df14b257ac92b Mon Sep 17 00:00:00 2001
From: Makoto Hiramatsu <himkt@klis.tsukuba.ac.jp>
Date: Wed, 20 Apr 2022 08:32:41 +0900
Subject: [PATCH] Set upper constraint for Optuna

---
 cmd/suggestion/optuna/v1beta1/requirements.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmd/suggestion/optuna/v1beta1/requirements.txt b/cmd/suggestion/optuna/v1beta1/requirements.txt
index 5e35741485d..56d92e77a27 100644
--- a/cmd/suggestion/optuna/v1beta1/requirements.txt
+++ b/cmd/suggestion/optuna/v1beta1/requirements.txt
@@ -1,4 +1,4 @@
 grpcio==1.41.1
 protobuf==3.19.1
 googleapis-common-protos==1.53.0
-optuna>=2.8.0
+optuna<3.0.0