diff --git a/.github/workflows/e2e-standalone-tests.yml b/.github/workflows/e2e-standalone-tests.yml
index 2de6d6107..49839e4b0 100644
--- a/.github/workflows/e2e-standalone-tests.yml
+++ b/.github/workflows/e2e-standalone-tests.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        optuna-version: ['optuna==2.10.0', 'git+https://github.com/optuna/optuna.git']
+        optuna-version: ['git+https://github.com/optuna/optuna.git']
     steps:
       - uses: actions/checkout@v3