diff --git a/poetry.lock b/poetry.lock
index ab06758..3d85e60 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -221,6 +221,26 @@ files = [
     {file = "imagesize-1.4.1.tar.gz", hash = "sha256:69150444affb9cb0d5cc5a92b3676f0b2fb7cd9ae39e947a5e11a36b4497cd4a"},
 ]
 
+[[package]]
+name = "importlib-metadata"
+version = "6.8.0"
+description = "Read metadata from Python packages"
+category = "main"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "importlib_metadata-6.8.0-py3-none-any.whl", hash = "sha256:3ebb78df84a805d7698245025b975d9d67053cd94c79245ba4b3eb694abe68bb"},
+    {file = "importlib_metadata-6.8.0.tar.gz", hash = "sha256:dbace7892d8c0c4ac1ad096662232f831d4e64f4c4545bd53016a3e9d4654743"},
+]
+
+[package.dependencies]
+zipp = ">=0.5"
+
+[package.extras]
+docs = ["furo", "jaraco.packaging (>=9)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-lint"]
+perf = ["ipython"]
+testing = ["flufl.flake8", "importlib-resources (>=1.3)", "packaging", "pyfakefs", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-mypy (>=0.9.1)", "pytest-perf (>=0.9.2)", "pytest-ruff"]
+
 [[package]]
 name = "jinja2"
 version = "3.1.2"
@@ -656,6 +676,7 @@ babel = ">=2.9"
 colorama = {version = ">=0.4.5", markers = "sys_platform == \"win32\""}
 docutils = ">=0.18.1,<0.21"
 imagesize = ">=1.3"
+importlib-metadata = {version = ">=4.8", markers = "python_version < \"3.10\""}
 Jinja2 = ">=3.0"
 packaging = ">=21.0"
 Pygments = ">=2.14"
@@ -1113,7 +1134,23 @@ files = [
     {file = "wrapt-1.15.0.tar.gz", hash = "sha256:d06730c6aed78cee4126234cf2d071e01b44b915e725a6cb439a879ec9754a3a"},
 ]
 
+[[package]]
+name = "zipp"
+version = "3.17.0"
+description = "Backport of pathlib-compatible object wrapper for zip files"
+category = "main"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "zipp-3.17.0-py3-none-any.whl", hash = "sha256:0e923e726174922dce09c53c59ad483ff7bbb8e572e00c7f7c46b88556409f31"},
+    {file = "zipp-3.17.0.tar.gz", hash = "sha256:84e64a1c28cf7e91ed2078bb8cc8c259cb19b76942096c8d7b84947690cabaf0"},
+]
+
+[package.extras]
+docs = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (<7.2.5)", "sphinx (>=3.5)", "sphinx-lint"]
+testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-ignore-flaky", "pytest-mypy (>=0.9.1)", "pytest-ruff"]
+
 [metadata]
 lock-version = "2.0"
-python-versions = "^3.10"
-content-hash = "666dfc48a0cf46d5670a9ad7823754fc2276c3c258995d714c7ca012295e1ceb"
+python-versions = "^3.9"
+content-hash = "3dfa8010e82ac031d0764eb5e626ce7071a200bed20a3fa8eb6090cb6587b522"
diff --git a/pyproject.toml b/pyproject.toml
index c054c7a..e7e0947 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ readme = "README.md"
 repository = "https://github.com/gdcc/dataversecommunity.global"
 
 [tool.poetry.dependencies]
-python = "^3.10"
+python = "^3.9"
 taskipy = "^1.10.3"
 
 Sphinx = "^7.2.6"
@@ -35,4 +35,4 @@ docs-live = "poetry run sphinx-autobuild source build/html --open-browser --dela
 
 [build-system]
 requires = ["poetry-core>=1.2.0"]
-build-backend = "poetry.core.masonry.api"
\ No newline at end of file
+build-backend = "poetry.core.masonry.api"