diff --git a/.flake8 b/.flake8
deleted file mode 100644
index 0d900dce..00000000
--- a/.flake8
+++ /dev/null
@@ -1,11 +0,0 @@
-[flake8]
-; Disabling the checks that conflict with "black" and "pylint":
-;   E122 "continuation line missing indentation or outdented"
-;   E126 "continuation line over-indented for hanging indent"
-;   E131 "continuation line unaligned for hanging indent"
-;   E203 "whitespace before ':'"
-;   E501 "line too long (129 > 120 characters)"
-;   W503 "line break before binary operator"
-;   F401 "module imported but unused"
-select = E,F,W,C,S
-ignore = E122,E126,E131,E203,E501,W503,F401
diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index a327a39d..6558125f 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -1,4 +1,4 @@
-name: main
+name: Main
 
 on:
   push: { branches: [main] }
@@ -18,14 +18,14 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-python@v4
       with:
-        python-version: "3.10"
+        python-version: "3.11"
         cache: pip
     - name: "lint: isort"
       run: make isort
     - name: "lint: black"
       run: make black
-    - name: "lint: flake8"
-      run: make flake8
+    - name: "lint: ruff"
+      run: make ruff
     - name: "lint: pylint"
       run: make pylint
     - name: "lint: mypy"
@@ -34,6 +34,7 @@ jobs:
       run: make bandit
 
   test:
+    name: test (Python ${{ matrix.target.python }}, ClickHouse ${{ matrix.clickhouse }})
     needs: lint
     strategy:
       fail-fast: false
@@ -42,6 +43,8 @@ jobs:
         - python: "3.6"
           ubuntu: "20.04"
         - python: "3.10"
+          ubuntu: "22.04"
+        - python: "3.11"
           ubuntu: "latest"
         clickhouse:
         - "21.8.15.7"
@@ -59,4 +62,4 @@ jobs:
     - name: run unit tests
       run: make test-unit
     - name: run integration tests
-      run: make test-integration
+      run: CLICKHOUSE_VERSION=${{ matrix.clickhouse }} make test-integration
diff --git a/.python-version b/.python-version
index c8cfe395..2c073331 100644
--- a/.python-version
+++ b/.python-version
@@ -1 +1 @@
-3.10
+3.11
diff --git a/.ruff.toml b/.ruff.toml
new file mode 100644
index 00000000..8e4923a6
--- /dev/null
+++ b/.ruff.toml
@@ -0,0 +1,9 @@
+select = ["E", "F", "W", "A"]
+
+ignore = [
+    "A003",  # "Class attribute is shadowing a Python builtin"
+    "E501",  # "Line too long"
+]
+
+[per-file-ignores]
+"__init__.py" = ["F401"]  # "Unused import"
diff --git a/Makefile b/Makefile
index 2f081d0d..c801a7c4 100644
--- a/Makefile
+++ b/Makefile
@@ -27,7 +27,7 @@ build: install-deps ch_backup/version.txt
 all: build lint test-unit test-integration
 
 .PHONY: lint
-lint: install-deps isort black flake8 pylint mypy bandit
+lint: install-deps isort black ruff pylint mypy bandit
 
 .PHONY: isort
 isort: install-deps
@@ -37,9 +37,9 @@ isort: install-deps
 black: install-deps
 	${TEST_ENV} black --check --diff .
 
-.PHONY: flake8
-flake8: install-deps
-	${TEST_ENV} flake8 ch_backup tests
+.PHONY: ruff
+ruff: install-deps
+	${TEST_ENV} ruff check ch_backup tests
 
 .PHONY: pylint
 pylint: install-deps
@@ -157,6 +157,7 @@ install-deps: .install-deps
 
 .install-deps: requirements.txt requirements-dev.txt
 	if [ -z "${NO_VENV}" ]; then ${PYTHON} -m venv venv; fi
+	${TEST_ENV} pip install --upgrade pip
 	${TEST_ENV} pip install --no-cache-dir --disable-pip-version-check -r requirements.txt -r requirements-dev.txt
 	touch .install-deps
 
@@ -166,12 +167,12 @@ help:
 	@echo "Targets:"
 	@echo "  build (default)            Build project. It installs dependencies and generates version.txt."
 	@echo "  all                        Alias for \"build lint test-unit test-integration\"."
-	@echo "  lint                       Run all linter tools. Alias for \"isort black flake8 pylint mypy bandit\"."
+	@echo "  lint                       Run all linter tools. Alias for \"isort black ruff pylint mypy bandit\"."
 	@echo "  test-unit                  Run unit tests."
 	@echo "  test-integration           Run integration tests."
 	@echo "  isort                      Perform isort checks."
 	@echo "  black                      Perform black checks."
-	@echo "  flake8                     Perform flake8 checks."
+	@echo "  ruff                       Perform ruff checks."
 	@echo "  pylint                     Perform pylint checks."
 	@echo "  mypy                       Perform mypy checks.."
 	@echo "  bandit                     Perform bandit checks."
diff --git a/README.md b/README.md
index d0b3fa66..39562322 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ Commands:
 
 ### Regression
 
-The regression test suite contains run of static code analysis tools (isort, black, flake8, pylint, mypy, bandit),
+The regression test suite contains run of static code analysis tools (isort, black, ruff, pylint, mypy, bandit),
 unit tests and integration tests.
 
 The tests can be run by issuing the command:
diff --git a/ch_backup/type_hints/boto3/s3.py b/ch_backup/type_hints/boto3/s3.py
index 3ef91a52..d0ba842b 100644
--- a/ch_backup/type_hints/boto3/s3.py
+++ b/ch_backup/type_hints/boto3/s3.py
@@ -4,8 +4,8 @@
 from typing import TYPE_CHECKING, Any
 
 if TYPE_CHECKING:
-    from mypy_boto3_s3 import S3Client
-    from mypy_boto3_s3.type_defs import ObjectIdentifierTypeDef
+    from mypy_boto3_s3 import S3Client  # noqa: F401
+    from mypy_boto3_s3.type_defs import ObjectIdentifierTypeDef  # noqa: F401
 else:
     # TODO: Use module level __getattr_() as fallback (PEP 562) in Python 3.7+
     S3Client = Any
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 88fc4dc4..967097c7 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,8 +1,6 @@
 isort
 black
-flake8
-flake8-string-format
-flake8-print
+ruff; python_version >="3.7"
 pep8
 pylint
 mypy==0.910
diff --git a/setup.py b/setup.py
index 616b197d..9545f19b 100644
--- a/setup.py
+++ b/setup.py
@@ -48,6 +48,7 @@
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
         "Topic :: Database",
         "Typing :: Typed",
     ],