diff --git a/.copier-answers.yaml b/.copier-answers.yaml
index 904f700..6700009 100644
--- a/.copier-answers.yaml
+++ b/.copier-answers.yaml
@@ -1,5 +1,5 @@
 # Changes here will be overwritten by Copier
-_commit: d5da73e
+_commit: '4372075'
 _src_path: gh:python-project-templates/base
 add_docs: false
 add_extension: python
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 6ea4d3d..bd61322 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -15,7 +15,7 @@ on:
   workflow_dispatch:
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
 permissions:
diff --git a/Makefile b/Makefile
index c5043b9..3d9b420 100644
--- a/Makefile
+++ b/Makefile
@@ -25,16 +25,16 @@ lint-py:  ## lint python with ruff
 	python -m ruff format --check copier_update
 
 lint-docs:  ## lint docs with mdformat and codespell
-	python -m mdformat --check README.md
-	python -m codespell_lib README.md
+	python -m mdformat --check README.md $(wildcard docs/src)
+	python -m codespell_lib README.md $(wildcard docs/src)
 
 fix-py:  ## autoformat python code with ruff
 	python -m ruff check --fix copier_update
 	python -m ruff format copier_update
 
 fix-docs:  ## autoformat docs with mdformat and codespell
-	python -m mdformat README.md
-	python -m codespell_lib --write README.md
+	python -m mdformat README.md $(wildcard docs/src)
+	python -m codespell_lib --write README.md $(wildcard docs/src)
 
 lint: lint-py lint-docs  ## run all linters
 lints: lint
@@ -52,7 +52,7 @@ check-dist:  ## check python sdist and wheel with check-dist
 check-types:  ## check python types with ty
 	ty check --python $$(which python)
 
-checks: check-dist
+checks: check-dist check-types
 
 # Alias
 check: checks
diff --git a/copier_update/tests/test_github.py b/copier_update/tests/test_github.py
index f3f6fd7..e214a38 100644
--- a/copier_update/tests/test_github.py
+++ b/copier_update/tests/test_github.py
@@ -2,26 +2,29 @@
 
 from typing import Any
 
+from requests import Response, Session
+
 from copier_update.github import GitHubAppClient, Installation, Repository
 
 
-class FakeResponse:
+class FakeResponse(Response):
     def __init__(self, status_code: int, data: Any) -> None:
+        super().__init__()
         self.status_code = status_code
         self.data = data
-        self.ok = 200 <= status_code < 300
-        self.text = str(data)
+        self._content = str(data).encode()
 
-    def json(self) -> Any:
+    def json(self, **kwargs: Any) -> Any:
         return self.data
 
 
-class FakeSession:
+class FakeSession(Session):
     def __init__(self, *responses: FakeResponse) -> None:
+        super().__init__()
         self.responses = list(responses)
-        self.requests: list[tuple[str, str, dict[str, Any]]] = []
+        self.requests: list[tuple[str, str | bytes, dict[str, Any]]] = []
 
-    def request(self, method: str, url: str, **kwargs: Any) -> FakeResponse:
+    def request(self, method: str, url: str | bytes, *args: Any, **kwargs: Any) -> FakeResponse:
         self.requests.append((method, url, kwargs))
         return self.responses.pop(0)
 
diff --git a/copier_update/tests/test_updater.py b/copier_update/tests/test_updater.py
index b9df7ef..2f0b475 100644
--- a/copier_update/tests/test_updater.py
+++ b/copier_update/tests/test_updater.py
@@ -6,11 +6,11 @@
 
 import pytest
 
-from copier_update.github import Installation, Repository
+from copier_update.github import GitHubAppClient, Installation, Repository
 from copier_update.updater import Updater
 
 
-class FakeClient:
+class FakeClient(GitHubAppClient):
     def __init__(self, repositories: list[Repository]) -> None:
         self._repositories = repositories
         self.answers = {repository.full_name: ".copier-answers.yaml" for repository in repositories}
diff --git a/pyproject.toml b/pyproject.toml
index 19c55bb..5be0c58 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,6 +41,7 @@ develop = [
     "codespell",
     "hatchling",
     "mdformat",
+    "mdformat-frontmatter",
     "mdformat-tables>=1",
     "pytest",
     "pytest-cov",
@@ -77,7 +78,7 @@ replace = 'version = "{new_version}"'
 [tool.coverage.run]
 branch = true
 omit = [
-    "copier_update/tests/integration/",
+    "copier_update/tests/integration/*",
 ]
 
 [tool.coverage.report]