diff --git a/.github/workflows/pipeline.yml b/.github/workflows/pipeline.yml
index 6ce56a3..1270fa0 100644
--- a/.github/workflows/pipeline.yml
+++ b/.github/workflows/pipeline.yml
@@ -65,6 +65,13 @@ jobs:
       ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.ref }}
     secrets: inherit
 
+  check-deps:
+    name: Run Dependency Checks
+    uses: ./.github/workflows/unused.yml
+    with:
+      ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.ref }}
+    secrets: inherit
+
   all-passed:
     name: Check Build Status
     runs-on: ubuntu-latest
@@ -76,6 +83,7 @@ jobs:
       - run-tests
       - code-inspection
       - build-docker
+      - check-deps
     steps:
       - name: Harden runner
         uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
diff --git a/.github/workflows/unused.yml b/.github/workflows/unused.yml
new file mode 100644
index 0000000..cd52e69
--- /dev/null
+++ b/.github/workflows/unused.yml
@@ -0,0 +1,46 @@
+name: Dependencies
+
+on:
+  workflow_call:
+    inputs:
+      ref:
+        required: true
+        type: string
+
+permissions:
+  contents: read
+
+jobs:
+  lint-dependencies:
+    permissions:
+      contents: read
+      pull-requests: read
+    runs-on: ubuntu-latest
+    name: Lint Dependencies
+
+    steps:
+      - name: Harden runner
+        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
+        with:
+          egress-policy: audit
+
+      - name: Checkout code
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          ref: ${{ inputs.ref }}
+
+      - name: Install poetry
+        run: |
+          pipx install poetry
+
+      - name: Setup Python
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        with:
+          python-version-file: 'pyproject.toml'
+          cache: 'poetry'
+
+      - name: Install Dependencies
+        run: poetry install --no-interaction --sync --all-extras
+
+      - name: Inspect Dependencies
+        uses: mridang/action-dependency-insight@v1
diff --git a/devbox.json b/devbox.json
index 45774dc..3bc4779 100644
--- a/devbox.json
+++ b/devbox.json
@@ -30,6 +30,9 @@
       ],
       "docgen": [
         "composer docgen"
+      ],
+      "depcheck": [
+        "poetry run fawltydeps"
       ]
     }
   }
diff --git a/poetry.lock b/poetry.lock
index a2e9571..6fb1a86 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -18,7 +18,7 @@ version = "0.7.0"
 description = "Reusable constraint types to use with typing.Annotated"
 optional = false
 python-versions = ">=3.8"
-groups = ["main"]
+groups = ["main", "dev"]
 files = [
     {file = "annotated_types-0.7.0-py3-none-any.whl", hash = "sha256:1f02e8b43a8fbbc3f3e0d4f0f4bfc8131bcb4eebe8849b8e5c773f3a1c582a53"},
     {file = "annotated_types-0.7.0.tar.gz", hash = "sha256:aff07c09a53a08bc8cfccb9c85b05f1aa9a2a6f23728d790723543408344ce89"},
@@ -509,6 +509,30 @@ typing-extensions = {version = ">=4.6.0", markers = "python_version < \"3.13\""}
 [package.extras]
 test = ["pytest (>=6)"]
 
+[[package]]
+name = "fawltydeps"
+version = "0.19.0"
+description = "Find undeclared and unused 3rd-party dependencies in your Python project."
+optional = false
+python-versions = ">=3.8"
+groups = ["dev"]
+files = [
+    {file = "fawltydeps-0.19.0-py3-none-any.whl", hash = "sha256:fbdd3da5620dd3c6b12a8c00ac655d17376aacf6d105fa61fe44fa4fa195baed"},
+    {file = "fawltydeps-0.19.0.tar.gz", hash = "sha256:0fbe9b1736f3a1c7060d5b3489e24f594187a0c98afa5ea888b27e70e63b0ae0"},
+]
+
+[package.dependencies]
+importlib_metadata = ">=6.6.0"
+isort = {version = ">=5.10", markers = "python_version >= \"3.9\""}
+packaging = ">=24.0"
+pip-requirements-parser = ">=32.0.1"
+pydantic = ">=1.10.4,<3.0.0"
+PyYAML = ">=6.0.1"
+tomli = {version = ">=2.0.1,<3.0.0", markers = "python_version < \"3.11\""}
+
+[package.extras]
+uv = ["uv (>=0.1.6)"]
+
 [[package]]
 name = "filelock"
 version = "3.18.0"
@@ -560,7 +584,6 @@ description = "Read metadata from Python packages"
 optional = false
 python-versions = ">=3.9"
 groups = ["dev"]
-markers = "python_version < \"3.10\""
 files = [
     {file = "importlib_metadata-8.7.0-py3-none-any.whl", hash = "sha256:e5dd1551894c77868a30651cef00984d50e1002d06942a7101d34870c5f02afd"},
     {file = "importlib_metadata-8.7.0.tar.gz", hash = "sha256:d13b81ad223b890aa16c5471f2ac3056cf76c5f10f82d6f9292f0b415f389000"},
@@ -590,6 +613,22 @@ files = [
     {file = "iniconfig-2.1.0.tar.gz", hash = "sha256:3abbd2e30b36733fee78f9c7f7308f2d0050e88f0087fd25c2645f63c773e1c7"},
 ]
 
+[[package]]
+name = "isort"
+version = "6.0.1"
+description = "A Python utility / library to sort Python imports."
+optional = false
+python-versions = ">=3.9.0"
+groups = ["dev"]
+files = [
+    {file = "isort-6.0.1-py3-none-any.whl", hash = "sha256:2dc5d7f65c9678d94c88dfc29161a320eec67328bc97aad576874cb4be1e9615"},
+    {file = "isort-6.0.1.tar.gz", hash = "sha256:1cb5df28dfbc742e490c5e41bad6da41b805b0a8be7bc93cd0fb2a8a890ac450"},
+]
+
+[package.extras]
+colors = ["colorama"]
+plugins = ["setuptools"]
+
 [[package]]
 name = "jinja2"
 version = "3.1.6"
@@ -770,6 +809,26 @@ files = [
     {file = "pathspec-0.12.1.tar.gz", hash = "sha256:a482d51503a1ab33b1c67a6c3813a26953dbdc71c31dacaef9a838c4e29f5712"},
 ]
 
+[[package]]
+name = "pip-requirements-parser"
+version = "32.0.1"
+description = "pip requirements parser - a mostly correct pip requirements parsing library because it uses pip's own code."
+optional = false
+python-versions = ">=3.6.0"
+groups = ["dev"]
+files = [
+    {file = "pip-requirements-parser-32.0.1.tar.gz", hash = "sha256:b4fa3a7a0be38243123cf9d1f3518da10c51bdb165a2b2985566247f9155a7d3"},
+    {file = "pip_requirements_parser-32.0.1-py3-none-any.whl", hash = "sha256:4659bc2a667783e7a15d190f6fccf8b2486685b6dba4c19c3876314769c57526"},
+]
+
+[package.dependencies]
+packaging = "*"
+pyparsing = "*"
+
+[package.extras]
+docs = ["Sphinx (>=3.3.1)", "doc8 (>=0.8.1)", "sphinx-rtd-theme (>=0.5.0)"]
+testing = ["aboutcode-toolkit (>=6.0.0)", "black", "pytest (>=6,!=7.0.0)", "pytest-xdist (>=2)"]
+
 [[package]]
 name = "platformdirs"
 version = "4.3.8"
@@ -822,7 +881,7 @@ version = "2.11.7"
 description = "Data validation using Python type hints"
 optional = false
 python-versions = ">=3.9"
-groups = ["main"]
+groups = ["main", "dev"]
 files = [
     {file = "pydantic-2.11.7-py3-none-any.whl", hash = "sha256:dde5df002701f6de26248661f6835bbe296a47bf73990135c7d07ce741b9623b"},
     {file = "pydantic-2.11.7.tar.gz", hash = "sha256:d989c3c6cb79469287b1569f7447a17848c998458d49ebe294e975b9baf0f0db"},
@@ -844,7 +903,7 @@ version = "2.33.2"
 description = "Core functionality for Pydantic validation and serialization"
 optional = false
 python-versions = ">=3.9"
-groups = ["main"]
+groups = ["main", "dev"]
 files = [
     {file = "pydantic_core-2.33.2-cp310-cp310-macosx_10_12_x86_64.whl", hash = "sha256:2b3d326aaef0c0399d9afffeb6367d5e26ddc24d351dbc9c636840ac355dc5d8"},
     {file = "pydantic_core-2.33.2-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:0e5b2671f05ba48b94cb90ce55d8bdcaaedb8ba00cc5359f6810fc918713983d"},
@@ -965,6 +1024,21 @@ files = [
 [package.extras]
 windows-terminal = ["colorama (>=0.4.6)"]
 
+[[package]]
+name = "pyparsing"
+version = "3.2.3"
+description = "pyparsing module - Classes and methods to define and execute parsing grammars"
+optional = false
+python-versions = ">=3.9"
+groups = ["dev"]
+files = [
+    {file = "pyparsing-3.2.3-py3-none-any.whl", hash = "sha256:a749938e02d6fd0b59b356ca504a24982314bb090c383e3cf201c95ef7e2bfcf"},
+    {file = "pyparsing-3.2.3.tar.gz", hash = "sha256:b9c13f1ab8b3b542f72e28f634bad4de758ab3ce4546e4301970ad6fa77c38be"},
+]
+
+[package.extras]
+diagrams = ["jinja2", "railroad-diagrams"]
+
 [[package]]
 name = "pyproject-api"
 version = "1.9.1"
@@ -1086,6 +1160,69 @@ files = [
     {file = "pywin32-310-cp39-cp39-win_amd64.whl", hash = "sha256:96867217335559ac619f00ad70e513c0fcf84b8a3af9fc2bba3b59b97da70475"},
 ]
 
+[[package]]
+name = "pyyaml"
+version = "6.0.2"
+description = "YAML parser and emitter for Python"
+optional = false
+python-versions = ">=3.8"
+groups = ["dev"]
+files = [
+    {file = "PyYAML-6.0.2-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:0a9a2848a5b7feac301353437eb7d5957887edbf81d56e903999a75a3d743086"},
+    {file = "PyYAML-6.0.2-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:29717114e51c84ddfba879543fb232a6ed60086602313ca38cce623c1d62cfbf"},
+    {file = "PyYAML-6.0.2-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:8824b5a04a04a047e72eea5cec3bc266db09e35de6bdfe34c9436ac5ee27d237"},
+    {file = "PyYAML-6.0.2-cp310-cp310-manylinux_2_17_s390x.manylinux2014_s390x.whl", hash = "sha256:7c36280e6fb8385e520936c3cb3b8042851904eba0e58d277dca80a5cfed590b"},
+    {file = "PyYAML-6.0.2-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:ec031d5d2feb36d1d1a24380e4db6d43695f3748343d99434e6f5f9156aaa2ed"},
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+    {file = "PyYAML-6.0.2-cp39-cp39-musllinux_1_1_aarch64.whl", hash = "sha256:0b69e4ce7a131fe56b7e4d770c67429700908fc0752af059838b1cfb41960e4e"},
+    {file = "PyYAML-6.0.2-cp39-cp39-musllinux_1_1_x86_64.whl", hash = "sha256:a9f8c2e67970f13b16084e04f134610fd1d374bf477b17ec1599185cf611d725"},
+    {file = "PyYAML-6.0.2-cp39-cp39-win32.whl", hash = "sha256:6395c297d42274772abc367baaa79683958044e5d3835486c16da75d2a694631"},
+    {file = "PyYAML-6.0.2-cp39-cp39-win_amd64.whl", hash = "sha256:39693e1f8320ae4f43943590b49779ffb98acb81f788220ea932a6b6c51004d8"},
+    {file = "pyyaml-6.0.2.tar.gz", hash = "sha256:d584d9ec91ad65861cc08d42e834324ef890a082e591037abe114850ff7bbc3e"},
+]
+
 [[package]]
 name = "requests"
 version = "2.32.4"
@@ -1197,26 +1334,6 @@ docs = ["sphinxcontrib-websupport"]
 lint = ["flake8 (>=6.0)", "importlib-metadata (>=6.0)", "mypy (==1.10.1)", "pytest (>=6.0)", "ruff (==0.5.2)", "sphinx-lint (>=0.9)", "tomli (>=2)", "types-docutils (==0.21.0.20240711)", "types-requests (>=2.30.0)"]
 test = ["cython (>=3.0)", "defusedxml (>=0.7.1)", "pytest (>=8.0)", "setuptools (>=70.0)", "typing_extensions (>=4.9)"]
 
-[[package]]
-name = "sphinx-rtd-theme"
-version = "3.0.2"
-description = "Read the Docs theme for Sphinx"
-optional = false
-python-versions = ">=3.8"
-groups = ["dev"]
-files = [
-    {file = "sphinx_rtd_theme-3.0.2-py2.py3-none-any.whl", hash = "sha256:422ccc750c3a3a311de4ae327e82affdaf59eb695ba4936538552f3b00f4ee13"},
-    {file = "sphinx_rtd_theme-3.0.2.tar.gz", hash = "sha256:b7457bc25dda723b20b086a670b9953c859eab60a2a03ee8eb2bb23e176e5f85"},
-]
-
-[package.dependencies]
-docutils = ">0.18,<0.22"
-sphinx = ">=6,<9"
-sphinxcontrib-jquery = ">=4,<5"
-
-[package.extras]
-dev = ["bump2version", "transifex-client", "twine", "wheel"]
-
 [[package]]
 name = "sphinxcontrib-applehelp"
 version = "2.0.0"
@@ -1268,21 +1385,6 @@ lint = ["mypy", "ruff (==0.5.5)", "types-docutils"]
 standalone = ["Sphinx (>=5)"]
 test = ["html5lib", "pytest"]
 
-[[package]]
-name = "sphinxcontrib-jquery"
-version = "4.1"
-description = "Extension to include jQuery on newer Sphinx releases"
-optional = false
-python-versions = ">=2.7"
-groups = ["dev"]
-files = [
-    {file = "sphinxcontrib-jquery-4.1.tar.gz", hash = "sha256:1620739f04e36a2c779f1a131a2dfd49b2fd07351bf1968ced074365933abc7a"},
-    {file = "sphinxcontrib_jquery-4.1-py2.py3-none-any.whl", hash = "sha256:f936030d7d0147dd026a4f2b5a57343d233f1fc7b363f68b3d4f1cb0993878ae"},
-]
-
-[package.dependencies]
-Sphinx = ">=1.8"
-
 [[package]]
 name = "sphinxcontrib-jsmath"
 version = "1.0.1"
@@ -1464,7 +1566,7 @@ version = "0.4.1"
 description = "Runtime typing introspection tools"
 optional = false
 python-versions = ">=3.9"
-groups = ["main"]
+groups = ["main", "dev"]
 files = [
     {file = "typing_inspection-0.4.1-py3-none-any.whl", hash = "sha256:389055682238f53b04f7badcb49b989835495a96700ced5dab2d8feae4b26f51"},
     {file = "typing_inspection-0.4.1.tar.gz", hash = "sha256:6ae134cc0203c33377d43188d4064e9b357dba58cff3185f22924610e70a9d28"},
@@ -1608,7 +1710,6 @@ description = "Backport of pathlib-compatible object wrapper for zip files"
 optional = false
 python-versions = ">=3.9"
 groups = ["dev"]
-markers = "python_version < \"3.10\""
 files = [
     {file = "zipp-3.23.0-py3-none-any.whl", hash = "sha256:071652d6115ed432f5ce1d34c336c0adfd6a884660d1e9712a256d3d3bd4b14e"},
     {file = "zipp-3.23.0.tar.gz", hash = "sha256:a07157588a12518c9d4034df3fbbee09c814741a33ff63c05fa29d26a2404166"},
@@ -1625,4 +1726,4 @@ type = ["pytest-mypy"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.9, !=3.9.0, !=3.9.1"
-content-hash = "9b0eab5ff6a4a8457b2742db4a4bb58358b03f026d0a4e3371192ab0f4137140"
+content-hash = "4326c17619ffee9aee37ad157d55d3ec3d68f23e7c3d2fadbb21d05485de0e43"
diff --git a/pyproject.toml b/pyproject.toml
index 1359cbc..bd84a2f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ dependencies = [
   "typing-extensions>=4.7.1",
   "authlib>=1.3.2,<2.0.0",
   "cryptography (>=44.0.1,<45.0.0)",
-  "requests (>=2.32.3,<3.0.0)"
+  "requests (>=2.32.4,<3.0.0)",
 ]
 
 [project.urls]
@@ -40,8 +40,8 @@ mypy = ">= 1.5"
 testcontainers = "3.7.1"
 python-dotenv = "1.1.1"
 ruff = "^0.12.4"
-sphinx-rtd-theme = "^3.0.2"
 sphinx = "7.4.7"
+fawltydeps = "0.19.0"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]
@@ -58,7 +58,6 @@ addopts = [
   "--cov-report=html:build/coverage/html",
   "--cov-report=xml:build/coverage/clover.xml",
   "--cov-report=term",
-
 ]
 junit_family = "legacy"
 
@@ -103,3 +102,14 @@ exclude = [
 select = ["E", "F", "I", "B", "C", "N", "Q", "S", "T"]
 extend-select = ["A"]
 ignore = ["S101"]  # Ignore assert statements
+
+[tool.fawltydeps]
+ignore_unused = [
+  "fawltydeps",
+  "mypy",
+  "pytest-cov",
+  "ruff",
+  "sphinx",
+  "tox",
+  "requests"
+]
diff --git a/test/test_api_client.py b/test/test_api_client.py
index 47bcedb..93a2eec 100644
--- a/test/test_api_client.py
+++ b/test/test_api_client.py
@@ -60,7 +60,7 @@ def test_assert_headers_and_content_type(self) -> None:
                             "headers": {
                                 "Authorization": {"equalTo": "Bearer mm"},
                                 "User-Agent": {
-                                    "matches": "^zitadel-client/\\d+\\.\\d+\\.\\d+(-[a-zA-Z0-9]+(\.\d+)?)? \\(lang=python; lang_version=[^;]+; os=[^;]+; arch=[^;]+\\)$"  # noqa E501
+                                    "matches": "^zitadel-client/\\d+\\.\\d+\\.\\d+(-[a-zA-Z0-9]+(\\.\\d+)?)? \\(lang=python; lang_version=[^;]+; os=[^;]+; arch=[^;]+\\)$"  # noqa E501
                                 },
                             },
                         },