diff --git a/.github/workflows/e2e-dashboard-tests.yml b/.github/workflows/e2e-dashboard-tests.yml
index e29caceaf..4682cae18 100644
--- a/.github/workflows/e2e-dashboard-tests.yml
+++ b/.github/workflows/e2e-dashboard-tests.yml
@@ -39,9 +39,9 @@ jobs:
           npm run build:dev
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
-          python-version: '3.11'
+          python-version: '3.12'
           architecture: x64
 
       - name: Setup Optuna ${{ matrix.optuna-version }}
diff --git a/.github/workflows/python-tests.yml b/.github/workflows/python-tests.yml
index d6d444786..230aae853 100644
--- a/.github/workflows/python-tests.yml
+++ b/.github/workflows/python-tests.yml
@@ -15,7 +15,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.11'
+          python-version: '3.12'
           architecture: x64
       - name: Install dependencies
         run: |
@@ -37,7 +37,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.11'
+          python-version: '3.12'
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip setuptools
@@ -47,7 +47,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
         optuna-version: ['optuna>=3.1.0']
     steps:
       - uses: actions/checkout@v2
diff --git a/Dockerfile b/Dockerfile
index 035eb835e..6a392d4f0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ ADD ./optuna_dashboard/ts/ /usr/src/optuna_dashboard/ts
 RUN mkdir -p /usr/src/optuna_dashboard/public
 RUN npm run build:prd
 
-FROM python:3.11-buster AS python-builder
+FROM python:3.12-buster AS python-builder
 
 WORKDIR /usr/src
 RUN pip install --upgrade pip setuptools
diff --git a/docs/getting-started.rst b/docs/getting-started.rst
index 6f4e0d730..b24aed5d7 100644
--- a/docs/getting-started.rst
+++ b/docs/getting-started.rst
@@ -14,7 +14,7 @@ Installation
 Prerequisite
 ~~~~~~~~~~~~
 
-Optuna Dashboard supports Python 3.7 or newer.
+Optuna Dashboard supports Python 3.8 or newer.
 
 
 Installing from PyPI
diff --git a/pyproject.toml b/pyproject.toml
index 9b475fc13..58a21213c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 authors = [
     { name = "Masashi Shibata", "email" = "mshibata@preferred.jp" }
 ]
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 license = {text = "MIT License"}
 classifiers = [
     "Development Status :: 3 - Alpha",
@@ -17,11 +17,12 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3 :: Only",
     "Intended Audience :: Science/Research",
 ]
diff --git a/python_tests/preferential/test_study.py b/python_tests/preferential/test_study.py
index 5ba8406a6..d3e3b9377 100644
--- a/python_tests/preferential/test_study.py
+++ b/python_tests/preferential/test_study.py
@@ -59,6 +59,9 @@ def test_report_and_get_preferences(storage_supplier: Callable[[], StorageSuppli
         assert actual_worse.number == worse.number
 
 
+# TODO(c-bata): Add support for Python 3.13.
+# https://github.com/optuna/optuna-dashboard/pull/985
+@pytest.mark.skipif(sys.version_info > (3, 13), reason="With Python 3.13, this test is broken")
 def test_study_pickle() -> None:
     study_1 = create_study(
         n_generate=4,