diff --git a/requirements.dev.txt b/requirements.dev.txt
new file mode 100644
index 0000000..9e73271
--- /dev/null
+++ b/requirements.dev.txt
@@ -0,0 +1,15 @@
+numpy>=1.21.2,<2.0
+pytest>=7.2.0,<8.0
+pytest-cov>=4.0.0,<5.0
+mypy>=0.981,<1.0
+pre-commit>=2.20.0,<3.0
+tox>=3.25.1,<4.0
+moto==4.1.6
+astropy==5.1.1
+pytest-astropy==0.10.0
+psycopg==3.1.8
+flake8==6.0.0
+black==23.1.0
+slack_sdk==3.19.5
+boto3==1.28.4
+hermes_core @ git+https://github.com/HERMES-SOC/hermes_core.git@main
\ No newline at end of file
diff --git a/test_file_manifest.txt b/test_file_manifest.txt
new file mode 100644
index 0000000..40df2a5
--- /dev/null
+++ b/test_file_manifest.txt
@@ -0,0 +1 @@
+Manifest content
\ No newline at end of file
diff --git a/tox.ini b/tox.ini
index ddcaf52..c91cc5d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,6 +13,6 @@ python =
 passenv = PYTHON_VERSION
 allowlist_externals = poetry
 commands =
-    pip install .
+    pip install -r requirements.dev.txt
     pytest --doctest-modules tests --cov --cov-config=pyproject.toml --cov-report=xml --log-level=INFO
     poetry run pre-commit run --all-files
\ No newline at end of file