diff --git a/Makefile b/Makefile
index 1d5c384..16bde09 100644
--- a/Makefile
+++ b/Makefile
@@ -23,7 +23,7 @@ install:
 	python3 -m pip install --upgrade -e .
 
 test-requirements:
-	python3 -m pip install --upgrade -r test-requirements.txt
+	python3 -m pip install --upgrade --group dev
 
 generate-proto-parsers:
 	# Generate python parsers for protobuf files
diff --git a/pyproject.toml b/pyproject.toml
index 3b3ca76..cb7911b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,13 +1,11 @@
 [project]
 name = "mvt"
 dynamic = ["version"]
-authors = [
-    {name = "Claudio Guarnieri", email = "nex@nex.sx"}
-]
+authors = [{ name = "Claudio Guarnieri", email = "nex@nex.sx" }]
 maintainers = [
-    {name = "Etienne Maynier", email = "tek@randhome.io"},
-    {name = "Donncha Ó Cearbhaill", email = "donncha.ocearbhaill@amnesty.org"},
-    {name = "Rory Flynn", email = "rory.flynn@amnesty.org"}
+    { name = "Etienne Maynier", email = "tek@randhome.io" },
+    { name = "Donncha Ó Cearbhaill", email = "donncha.ocearbhaill@amnesty.org" },
+    { name = "Rory Flynn", email = "rory.flynn@amnesty.org" },
 ]
 description = "Mobile Verification Toolkit"
 readme = "README.md"
@@ -16,7 +14,7 @@ classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Intended Audience :: Information Technology",
     "Operating System :: OS Independent",
-    "Programming Language :: Python"
+    "Programming Language :: Python",
 ]
 dependencies = [
     "click==8.2.1",
@@ -45,20 +43,31 @@ homepage = "https://docs.mvt.re/en/latest/"
 repository = "https://github.com/mvt-project/mvt"
 
 [project.scripts]
-    mvt-ios = "mvt.ios:cli"
-    mvt-android = "mvt.android:cli"
+mvt-ios = "mvt.ios:cli"
+mvt-android = "mvt.android:cli"
+
+[dependency-groups]
+dev = [
+    "requests>=2.31.0",
+    "pytest>=7.4.3",
+    "pytest-cov>=4.1.0",
+    "pytest-github-actions-annotate-failures>=0.2.0",
+    "pytest-mock>=3.14.0",
+    "stix2>=3.0.1",
+    "ruff>=0.1.6",
+    "mypy>=1.7.1",
+    "betterproto[compiler]",
+]
 
 [build-system]
 requires = ["setuptools>=61.0"]
 build-backend = "setuptools.build_meta"
 
 [tool.coverage.run]
-omit = [
-    "tests/*",
-]
+omit = ["tests/*"]
 
 [tool.coverage.html]
-directory= "htmlcov"
+directory = "htmlcov"
 
 [tool.mypy]
 install_types = true
@@ -68,15 +77,13 @@ packages = "src"
 
 [tool.pytest.ini_options]
 addopts = "-ra -q --cov=mvt --cov-report html --junitxml=pytest.xml --cov-report=term-missing:skip-covered"
-testpaths = [
-    "tests"
-]
+testpaths = ["tests"]
 
 [tool.ruff.lint]
-select = ["C90", "E", "F", "W"]  # flake8 default set
+select = ["C90", "E", "F", "W"] # flake8 default set
 ignore = [
-    "E501",  # don't enforce line length violations
-    "C901",  # complex-structure
+    "E501", # don't enforce line length violations
+    "C901", # complex-structure
 
     # These were previously ignored but don't seem to be required:
     # "E265",  # no-space-after-block-comment
@@ -88,14 +95,14 @@ ignore = [
 ]
 
 [tool.ruff.lint.per-file-ignores]
-"__init__.py" = ["F401"]  # unused-import
+"__init__.py" = ["F401"] # unused-import
 
 [tool.ruff.lint.mccabe]
 max-complexity = 10
 
 [tool.setuptools]
 include-package-data = true
-package-dir = {"" = "src"}
+package-dir = { "" = "src" }
 
 [tool.setuptools.packages.find]
 where = ["src"]
@@ -104,4 +111,4 @@ where = ["src"]
 mvt = ["ios/data/*.json"]
 
 [tool.setuptools.dynamic]
-version = {attr = "mvt.common.version.MVT_VERSION"}
+version = { attr = "mvt.common.version.MVT_VERSION" }
diff --git a/test-requirements.txt b/test-requirements.txt
deleted file mode 100644
index 57652da..0000000
--- a/test-requirements.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-requests>=2.31.0
-pytest>=7.4.3
-pytest-cov>=4.1.0
-pytest-github-actions-annotate-failures>=0.2.0
-pytest-mock>=3.14.0
-stix2>=3.0.1
-ruff>=0.1.6
-mypy>=1.7.1
-betterproto[compiler]
\ No newline at end of file