diff --git a/poetry.lock b/poetry.lock
index f6bef583..7f0d9ceb 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -137,18 +137,6 @@ typing-extensions = {version = ">=4.0.1", markers = "python_version < \"3.11\""}
 dev = ["anywidget", "black (<24)", "hatch", "ipython", "m2r", "mypy", "pandas-stubs", "pyarrow (>=11)", "pytest", "pytest-cov", "ruff", "types-jsonschema", "types-setuptools", "vega-datasets", "vegafusion[embed] (>=1.4.0)", "vl-convert-python (>=0.14.0)"]
 doc = ["docutils", "geopandas", "jinja2", "myst-parser", "numpydoc", "pillow (>=9,<10)", "pydata-sphinx-theme", "scipy", "sphinx", "sphinx-copybutton", "sphinx-design", "sphinxext-altair"]
 
-[[package]]
-name = "annotated-types"
-version = "0.6.0"
-description = "Reusable constraint types to use with typing.Annotated"
-category = "main"
-optional = false
-python-versions = ">=3.8"
-files = [
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-]
-
 [[package]]
 name = "anyio"
 version = "3.7.1"
@@ -1615,141 +1603,56 @@ numpy = ">=1.16.6"
 
 [[package]]
 name = "pydantic"
-version = "2.5.1"
-description = "Data validation using Python type hints"
+version = "1.10.13"
+description = "Data validation and settings management using python type hints"
 category = "main"
 optional = false
 python-versions = ">=3.7"
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-]
-
-[package.dependencies]
-typing-extensions = ">=4.6.0,<4.7.0 || >4.7.0"
+dotenv = ["python-dotenv (>=0.10.4)"]
+email = ["email-validator (>=1.0.3)"]
 
 [[package]]
 name = "pydeck"
@@ -3247,4 +3150,4 @@ xinference = []
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.10,<3.12"
-content-hash = "d0cfb1f93950dab347f43b123a641ffc4294eae711f0325827f82bad2704f09d"
+content-hash = "c737459625fbdd4e0cd756390178aedc898d55d6d2e8d342c5adb3b31932a0c2"
diff --git a/pyproject.toml b/pyproject.toml
index a8d7602e..476a42ce 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,6 +5,7 @@ description = "Backend library for conversational AI in biomedicine"
 authors = [
     "Sebastian Lobentanzer <sebastian.lobentanzer@gmail.com>",
     "Shaohong Feng <shaohong.feng.78@gmail.com>",
+    "Andreas Maier <andreas.maier-1@uni-hamburg.de"
 ]
 license = "MIT"
 readme = "README.md"
@@ -14,6 +15,7 @@ python = ">=3.10,<3.12"
 langchain = "0.0.339"
 openai = "^1.1.0"
 pymupdf = "^1.22.3"
+pydantic = "1.10.13"
 pymilvus = "2.2.8"
 tiktoken = "^0.4.0"
 nltk = "^3.8.1"
diff --git a/test/test_llm_connect.py b/test/test_llm_connect.py
index a2e58c2d..32f9da3a 100644
--- a/test/test_llm_connect.py
+++ b/test/test_llm_connect.py
@@ -137,7 +137,7 @@ def test_xinference_init():
     assert convo.set_api_key()
 
 
-#TODO move to test_prompts.py
+#TODO move to test_chatting.py once exists
 
 # def test_generic_chatting():
 #     base_url = os.getenv("XINFERENCE_BASE_URL", "http://llm.biocypher.org")