diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 6bdfcb5dc..80df9469d 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -8,10 +8,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        - python-version: 3.9
+        - python-version: "3.10"
           env:
             TOXENV: security
-        - python-version: 3.9
+        - python-version: "3.10"
           env:
             TOXENV: flake8
         # Pylint requires installing reppy, which does not support Python 3.9
@@ -20,10 +20,10 @@ jobs:
           env:
             TOXENV: pylint
             TOX_PIP_VERSION: 20.3.3
-        - python-version: 3.9
+        - python-version: 3.6
           env:
             TOXENV: typing
-        - python-version: 3.8  # Keep in sync with .readthedocs.yml
+        - python-version: "3.10"  # Keep in sync with .readthedocs.yml
           env:
             TOXENV: docs
 
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index b48066ea4..44b682830 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -9,10 +9,10 @@ jobs:
     steps:
     - uses: actions/checkout@v2
 
-    - name: Set up Python 3.9
+    - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: 3.9
+        python-version: "3.10"
 
     - name: Check Tag
       id: check-release-tag
diff --git a/.github/workflows/tests-macos.yml b/.github/workflows/tests-macos.yml
index 095ca1013..3aaf688c7 100644
--- a/.github/workflows/tests-macos.yml
+++ b/.github/workflows/tests-macos.yml
@@ -7,7 +7,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
 
     steps:
     - uses: actions/checkout@v2
diff --git a/.github/workflows/tests-ubuntu.yml b/.github/workflows/tests-ubuntu.yml
index ef1c8362f..5ea50e644 100644
--- a/.github/workflows/tests-ubuntu.yml
+++ b/.github/workflows/tests-ubuntu.yml
@@ -17,6 +17,12 @@ jobs:
         - python-version: 3.9
           env:
             TOXENV: py
+        - python-version: "3.10"
+          env:
+            TOXENV: py
+        - python-version: "3.10"
+          env:
+            TOXENV: asyncio
         - python-version: pypy3
           env:
             TOXENV: pypy3
@@ -42,14 +48,6 @@ jobs:
             TOXENV: extra-deps
             TOX_PIP_VERSION: 20.3.3
 
-        # 3.10-pre
-        - python-version: "3.10.0-beta.4"
-          env:
-            TOXENV: py
-        - python-version: "3.10.0-beta.4"
-          env:
-            TOXENV: asyncio
-
     steps:
     - uses: actions/checkout@v2
 
diff --git a/.readthedocs.yml b/.readthedocs.yml
index 80a1cd036..390be3749 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -5,12 +5,13 @@ sphinx:
   fail_on_warning: true
 
 build:
-  image: latest
+  os: ubuntu-20.04
+  tools:
+    # For available versions, see:
+    # https://docs.readthedocs.io/en/stable/config-file/v2.html#build-tools-python
+    python: "3.10"  # Keep in sync with .github/workflows/checks.yml
 
 python:
-  # For available versions, see:
-  # https://docs.readthedocs.io/en/stable/config-file/v2.html#build-image
-  version: 3.8  # Keep in sync with .github/workflows/checks.yml
   install:
     - requirements: docs/requirements.txt
     - path: .
diff --git a/setup.py b/setup.py
index ed2b6e347..3a6ff2836 100644
--- a/setup.py
+++ b/setup.py
@@ -87,6 +87,7 @@ setup(
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
         'Topic :: Internet :: WWW/HTTP',
diff --git a/tox.ini b/tox.ini
index 07552ba8d..021dd9988 100644
--- a/tox.ini
+++ b/tox.ini
@@ -41,6 +41,7 @@ deps =
     types-pyOpenSSL==20.0.3
     types-setuptools==57.0.0
 commands =
+    pip install types-dataclasses  # remove once py36 support is dropped
     mypy --show-error-codes {posargs: scrapy tests}
 
 [testenv:security]