diff --git a/.github/workflows/integration-tests.yml b/.github/workflows/integration-tests.yml
index f74b949b..b7517601 100644
--- a/.github/workflows/integration-tests.yml
+++ b/.github/workflows/integration-tests.yml
@@ -14,6 +14,9 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        optuna-version: ['optuna==2.10.0', 'git+https://github.com/optuna/optuna.git']
     steps:
       - uses: actions/checkout@v2
 
@@ -29,11 +32,14 @@ jobs:
         with:
           python-version: '3.8'
           architecture: x64
-      - name: Install dependencies
+      - name: Setup Optuna ${{ matrix.optuna-version }}
         run: |
           python -m pip install --progress-bar off --upgrade pip setuptools
-          pip install --progress-bar off .
-          pip install --progress-bar off pyppeteer
+          python -m pip install --progress-bar off --upgrade ${{ matrix.optuna-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --progress-bar off .
+          python -m pip install --progress-bar off pyppeteer
 
       - name: Cache headless chromium
         id: cache-chromium
diff --git a/optuna_dashboard/_app.py b/optuna_dashboard/_app.py
index 167a6ed6..2221ff42 100644
--- a/optuna_dashboard/_app.py
+++ b/optuna_dashboard/_app.py
@@ -30,6 +30,8 @@ from optuna.storages import RedisStorage
 from optuna.study import StudyDirection
 from optuna.study import StudySummary
 from optuna.trial import FrozenTrial
+from optuna.version import __version__ as optuna_ver
+from packaging import version
 
 from . import _note as note
 from ._importance import get_param_importance_from_trials_cache
@@ -75,7 +77,10 @@ def json_api_view(view: BottleView) -> BottleView:
 
 
 def get_study_summary(storage: BaseStorage, study_id: int) -> Optional[StudySummary]:
-    summaries = storage.get_all_study_summaries()
+    if version.parse(optuna_ver) >= version.Version("3.0.0b0.dev"):
+        summaries = storage.get_all_study_summaries(include_best_trial=True)  # type: ignore
+    else:
+        summaries = storage.get_all_study_summaries()  # type: ignore
     for summary in summaries:
         if summary._study_id != study_id:
             continue
@@ -121,12 +126,13 @@ def create_app(storage: BaseStorage, debug: bool = False) -> Bottle:
     @app.get("/api/studies")
     @json_api_view
     def list_study_summaries() -> BottleViewReturn:
-        summaries = [
-            serialize_study_summary(summary)
-            for summary in storage.get_all_study_summaries()
-        ]
+        if version.parse(optuna_ver) >= version.Version("3.0.0b0.dev"):
+            summaries = storage.get_all_study_summaries(include_best_trial=True)  # type: ignore
+        else:
+            summaries = storage.get_all_study_summaries()  # type: ignore
+        serialized = [serialize_study_summary(summary) for summary in summaries]
         return {
-            "study_summaries": summaries,
+            "study_summaries": serialized,
         }
 
     @app.post("/api/studies")
diff --git a/setup.cfg b/setup.cfg
index c9886d70..3b084284 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -29,6 +29,7 @@ include_package_data = False
 packages = find:
 install_requires =
     optuna>=2.4
+    packaging
     bottle
     typing-extensions;python_version<'3.8'
     scikit-learn
diff --git a/visual_regression_test.py b/visual_regression_test.py
index 1ffcf5dc..fbe639bb 100644
--- a/visual_regression_test.py
+++ b/visual_regression_test.py
@@ -10,6 +10,8 @@ from typing import Tuple
 from wsgiref.simple_server import make_server
 
 import optuna
+from optuna.version import __version__ as optuna_ver
+from packaging import version
 from pyppeteer import launch
 from pyppeteer.page import Page
 
@@ -196,7 +198,11 @@ async def take_screenshots(storage: optuna.storages.BaseStorage) -> List[str]:
         time.sleep(1)
         await page.screenshot({"path": os.path.join(args.output_dir, "study-list.png")})
 
-    study_ids = {s._study_id: s.study_name for s in storage.get_all_study_summaries()}
+    if version.parse(optuna_ver) >= version.Version("3.0.0b0.dev"):
+        summaries = storage.get_all_study_summaries(include_best_trial=True)  # type: ignore
+    else:
+        summaries = storage.get_all_study_summaries()  # type: ignore
+    study_ids = {s._study_id: s.study_name for s in summaries}
     for study_id, study_name in study_ids.items():
         await page.goto(f"http://{args.host}:{args.port}/dashboard/studies/{study_id}")
         time.sleep(args.sleep)