diff --git a/poetry.lock b/poetry.lock
index 73892b6b..76d55f44 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -95,6 +95,7 @@ python-versions = ">=3.7"
 
 [package.dependencies]
 colorama = {version = "*", markers = "platform_system == \"Windows\""}
+importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
 
 [[package]]
 name = "colorama"
@@ -128,7 +129,7 @@ dev = ["tox", "bump2version (<1)", "sphinx (<2)", "importlib-metadata (<3)", "im
 
 [[package]]
 name = "docutils"
-version = "0.17.1"
+version = "0.18.1"
 description = "Docutils -- Python Documentation Utilities"
 category = "dev"
 optional = false
@@ -208,11 +209,12 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 name = "importlib-metadata"
 version = "4.11.4"
 description = "Read metadata from Python packages"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=3.7"
 
 [package.dependencies]
+typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
 zipp = ">=0.5"
 
 [package.extras]
@@ -220,6 +222,21 @@ docs = ["sphinx", "jaraco.packaging (>=9)", "rst.linker (>=1.9)"]
 perf = ["ipython"]
 testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "packaging", "pyfakefs", "flufl.flake8", "pytest-perf (>=0.9.2)", "pytest-black (>=0.3.7)", "pytest-mypy (>=0.9.1)", "importlib-resources (>=1.3)"]
 
+[[package]]
+name = "importlib-resources"
+version = "5.7.1"
+description = "Read resources from Python packages"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+zipp = {version = ">=3.1.0", markers = "python_version < \"3.10\""}
+
+[package.extras]
+docs = ["sphinx", "jaraco.packaging (>=9)", "rst.linker (>=1.9)"]
+testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "pytest-black (>=0.3.7)", "pytest-mypy (>=0.9.1)"]
+
 [[package]]
 name = "isodate"
 version = "0.6.1"
@@ -321,7 +338,10 @@ python-versions = ">=3.7"
 
 [package.dependencies]
 attrs = ">=17.4.0"
+importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
+importlib-resources = {version = ">=1.4.0", markers = "python_version < \"3.9\""}
 pyrsistent = ">=0.14.0,<0.17.0 || >0.17.0,<0.17.1 || >0.17.1,<0.17.2 || >0.17.2"
+typing-extensions = {version = "*", markers = "python_version < \"3.8\""}
 
 [package.extras]
 format = ["fqdn", "idna", "isoduration", "jsonpointer (>1.13)", "rfc3339-validator", "rfc3987", "uri-template", "webcolors (>=1.11)"]
@@ -425,6 +445,7 @@ python-versions = ">=3.7"
 
 [package.dependencies]
 mdurl = ">=0.1,<1.0"
+typing_extensions = {version = ">=3.7.4", markers = "python_version < \"3.8\""}
 
 [package.extras]
 benchmarking = ["psutil", "pytest", "pytest-benchmark (>=3.2,<4.0)"]
@@ -501,14 +522,14 @@ i18n = ["babel (>=2.9.0)"]
 
 [[package]]
 name = "mkdocs-material"
-version = "8.3.0"
+version = "8.3.3"
 description = "Documentation that simply works"
 category = "dev"
 optional = false
 python-versions = ">=3.7"
 
 [package.dependencies]
-jinja2 = ">=2.11.1"
+jinja2 = ">=3.0.2"
 markdown = ">=3.2"
 mkdocs = ">=1.3.0"
 mkdocs-material-extensions = ">=1.0.3"
@@ -525,26 +546,26 @@ python-versions = ">=3.6"
 
 [[package]]
 name = "myst-parser"
-version = "0.17.2"
+version = "0.18.0"
 description = "An extended commonmark compliant parser, with bridges to docutils & sphinx."
 category = "dev"
 optional = false
 python-versions = ">=3.7"
 
 [package.dependencies]
-docutils = ">=0.15,<0.18"
+docutils = ">=0.15,<0.19"
 jinja2 = "*"
 markdown-it-py = ">=1.0.0,<3.0.0"
 mdit-py-plugins = ">=0.3.0,<0.4.0"
 pyyaml = "*"
-sphinx = ">=3.1,<5"
+sphinx = ">=4,<6"
 typing-extensions = "*"
 
 [package.extras]
 code_style = ["pre-commit (>=2.12,<3.0)"]
 linkify = ["linkify-it-py (>=1.0,<2.0)"]
-rtd = ["ipython", "sphinx-book-theme", "sphinx-panels", "sphinxcontrib-bibtex (>=2.4,<3.0)", "sphinxext-rediraffe (>=0.2.7,<0.3.0)", "sphinxcontrib.mermaid (>=0.7.1,<0.8.0)", "sphinxext-opengraph (>=0.6.3,<0.7.0)"]
-testing = ["beautifulsoup4", "coverage", "docutils (>=0.17.0,<0.18.0)", "pytest (>=6,<7)", "pytest-cov", "pytest-regressions", "pytest-param-files (>=0.3.4,<0.4.0)"]
+rtd = ["ipython", "sphinx-book-theme", "sphinx-design", "sphinxext-rediraffe (>=0.2.7,<0.3.0)", "sphinxcontrib.mermaid (>=0.7.1,<0.8.0)", "sphinxext-opengraph (>=0.6.3,<0.7.0)"]
+testing = ["beautifulsoup4", "coverage", "pytest (>=6,<7)", "pytest-cov", "pytest-regressions", "pytest-param-files (>=0.3.4,<0.4.0)", "sphinx-pytest"]
 
 [[package]]
 name = "openpyxl"
@@ -636,7 +657,7 @@ jsonasobj = ">=1.2.1"
 
 [[package]]
 name = "pymdown-extensions"
-version = "9.4"
+version = "9.5"
 description = "Extension pack for Python Markdown."
 category = "dev"
 optional = false
@@ -746,6 +767,7 @@ optional = false
 python-versions = ">=3.7"
 
 [package.dependencies]
+importlib-metadata = {version = "*", markers = "python_version < \"3.8.0\""}
 isodate = "*"
 pyparsing = "*"
 
@@ -779,20 +801,20 @@ rdflib-jsonld = "0.6.1"
 
 [[package]]
 name = "requests"
-version = "2.27.1"
+version = "2.28.0"
 description = "Python HTTP for Humans."
 category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*"
+python-versions = ">=3.7, <4"
 
 [package.dependencies]
 certifi = ">=2017.4.17"
-charset-normalizer = {version = ">=2.0.0,<2.1.0", markers = "python_version >= \"3\""}
-idna = {version = ">=2.5,<4", markers = "python_version >= \"3\""}
+charset-normalizer = ">=2.0.0,<2.1.0"
+idna = ">=2.5,<4"
 urllib3 = ">=1.21.1,<1.27"
 
 [package.extras]
-socks = ["PySocks (>=1.5.6,!=1.5.7)", "win-inet-pton"]
+socks = ["PySocks (>=1.5.6,!=1.5.7)"]
 use_chardet_on_py3 = ["chardet (>=3.0.2,<5)"]
 
 [[package]]
@@ -877,7 +899,7 @@ pandas = ["pandas (>=1.3.5)"]
 
 [[package]]
 name = "sphinx"
-version = "4.5.0"
+version = "5.0.1"
 description = "Python documentation generator"
 category = "dev"
 optional = false
@@ -887,7 +909,7 @@ python-versions = ">=3.6"
 alabaster = ">=0.7,<0.8"
 babel = ">=1.3"
 colorama = {version = ">=0.3.5", markers = "sys_platform == \"win32\""}
-docutils = ">=0.14,<0.18"
+docutils = ">=0.14,<0.19"
 imagesize = "*"
 importlib-metadata = {version = ">=4.4", markers = "python_version < \"3.10\""}
 Jinja2 = ">=2.3"
@@ -904,8 +926,8 @@ sphinxcontrib-serializinghtml = ">=1.1.5"
 
 [package.extras]
 docs = ["sphinxcontrib-websupport"]
-lint = ["flake8 (>=3.5.0)", "isort", "mypy (>=0.931)", "docutils-stubs", "types-typed-ast", "types-requests"]
-test = ["pytest", "pytest-cov", "html5lib", "cython", "typed-ast"]
+lint = ["flake8 (>=3.5.0)", "isort", "mypy (>=0.950)", "docutils-stubs", "types-typed-ast", "types-requests"]
+test = ["pytest (>=4.6)", "html5lib", "cython", "typed-ast"]
 
 [[package]]
 name = "sphinx-click"
@@ -1001,6 +1023,7 @@ python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,>=2.7"
 
 [package.dependencies]
 greenlet = {version = "!=0.4.17", markers = "python_version >= \"3\" and (platform_machine == \"aarch64\" or platform_machine == \"ppc64le\" or platform_machine == \"x86_64\" or platform_machine == \"amd64\" or platform_machine == \"AMD64\" or platform_machine == \"win32\" or platform_machine == \"WIN32\")"}
+importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
 
 [package.extras]
 aiomysql = ["greenlet (!=0.4.17)", "aiomysql"]
@@ -1027,7 +1050,7 @@ sqlcipher = ["sqlcipher3-binary"]
 name = "typing-extensions"
 version = "4.2.0"
 description = "Backported and Experimental Type Hints for Python 3.7+"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=3.7"
 
@@ -1067,7 +1090,7 @@ python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 name = "zipp"
 version = "3.8.0"
 description = "Backport of pathlib-compatible object wrapper for zip files"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=3.7"
 
@@ -1080,8 +1103,8 @@ docs = []
 
 [metadata]
 lock-version = "1.1"
-python-versions = "^3.9"
-content-hash = "ce338e3c43beb0d70a9692536c99b4ed22f140c11a638f9edc4fa9f972e6ccbf"
+python-versions = "^3.7.6"
+content-hash = "69c7979237da2a8d9d187689daaa253060205fddb2f9e051076aaa2cbb028c15"
 
 [metadata.files]
 alabaster = [
@@ -1135,8 +1158,8 @@ deprecated = [
     {file = "Deprecated-1.2.13.tar.gz", hash = "sha256:43ac5335da90c31c24ba028af536a91d41d53f9e6901ddb021bcc572ce44e38d"},
 ]
 docutils = [
-    {file = "docutils-0.17.1-py2.py3-none-any.whl", hash = "sha256:cf316c8370a737a022b72b56874f6602acf974a37a9fba42ec2876387549fc61"},
-    {file = "docutils-0.17.1.tar.gz", hash = "sha256:686577d2e4c32380bb50cbb22f575ed742d58168cee37e99117a854bcd88f125"},
+    {file = "docutils-0.18.1-py2.py3-none-any.whl", hash = "sha256:23010f129180089fbcd3bc08cfefccb3b890b0050e1ca00c867036e9d161b98c"},
+    {file = "docutils-0.18.1.tar.gz", hash = "sha256:679987caf361a7539d76e584cbeddc311e3aee937877c87346f31debc63e9d06"},
 ]
 et-xmlfile = [
     {file = "et_xmlfile-1.1.0-py3-none-any.whl", hash = "sha256:a2ba85d1d6a74ef63837eed693bcb89c3f752169b0e3e7ae5b16ca5e1b3deada"},
@@ -1223,6 +1246,10 @@ importlib-metadata = [
     {file = "importlib_metadata-4.11.4-py3-none-any.whl", hash = "sha256:c58c8eb8a762858f49e18436ff552e83914778e50e9d2f1660535ffb364552ec"},
     {file = "importlib_metadata-4.11.4.tar.gz", hash = "sha256:5d26852efe48c0a32b0509ffbc583fda1a2266545a78d104a6f4aff3db17d700"},
 ]
+importlib-resources = [
+    {file = "importlib_resources-5.7.1-py3-none-any.whl", hash = "sha256:e447dc01619b1e951286f3929be820029d48c75eb25d265c28b92a16548212b8"},
+    {file = "importlib_resources-5.7.1.tar.gz", hash = "sha256:b6062987dfc51f0fcb809187cffbd60f35df7acb4589091f154214af6d0d49d3"},
+]
 isodate = [
     {file = "isodate-0.6.1-py2.py3-none-any.whl", hash = "sha256:0751eece944162659049d35f4f549ed815792b38793f07cf73381c1c87cbed96"},
     {file = "isodate-0.6.1.tar.gz", hash = "sha256:48c5881de7e8b0a0d648cb024c8062dc84e7b840ed81e864c7614fd3c127bde9"},
@@ -1339,16 +1366,16 @@ mkdocs = [
     {file = "mkdocs-1.3.0.tar.gz", hash = "sha256:b504405b04da38795fec9b2e5e28f6aa3a73bb0960cb6d5d27ead28952bd35ea"},
 ]
 mkdocs-material = [
-    {file = "mkdocs-material-8.3.0.tar.gz", hash = "sha256:4cad98c47c49a86591ed16a790c07d59402901fc5345f575a3b7329403f5c66e"},
-    {file = "mkdocs_material-8.3.0-py2.py3-none-any.whl", hash = "sha256:e37e7da1c5923c5b9f0bb8c4ad90bc694fee8f966b43b302a7ff61cb2c35c2e0"},
+    {file = "mkdocs-material-8.3.3.tar.gz", hash = "sha256:3dd30af894f6d5da3d8a2f8ffc04c90c4d0f1be013e654ec45f608373c131542"},
+    {file = "mkdocs_material-8.3.3-py2.py3-none-any.whl", hash = "sha256:4f9564af58f9c96f25c263cb705a40a82c833cb10c2626d6db6ddadedaa5b6c3"},
 ]
 mkdocs-material-extensions = [
     {file = "mkdocs-material-extensions-1.0.3.tar.gz", hash = "sha256:bfd24dfdef7b41c312ede42648f9eb83476ea168ec163b613f9abd12bbfddba2"},
     {file = "mkdocs_material_extensions-1.0.3-py3-none-any.whl", hash = "sha256:a82b70e533ce060b2a5d9eb2bc2e1be201cf61f901f93704b4acf6e3d5983a44"},
 ]
 myst-parser = [
-    {file = "myst-parser-0.17.2.tar.gz", hash = "sha256:4c076d649e066f9f5c7c661bae2658be1ca06e76b002bb97f02a09398707686c"},
-    {file = "myst_parser-0.17.2-py3-none-any.whl", hash = "sha256:1635ce3c18965a528d6de980f989ff64d6a1effb482e1f611b1bfb79e38f3d98"},
+    {file = "myst-parser-0.18.0.tar.gz", hash = "sha256:739a4d96773a8e55a2cacd3941ce46a446ee23dcd6b37e06f73f551ad7821d86"},
+    {file = "myst_parser-0.18.0-py3-none-any.whl", hash = "sha256:4965e51918837c13bf1c6f6fe2c6bddddf193148360fbdaefe743a4981358f6a"},
 ]
 openpyxl = [
     {file = "openpyxl-3.0.10-py2.py3-none-any.whl", hash = "sha256:0ab6d25d01799f97a9464630abacbb34aafecdcaa0ef3cba6d6b3499867d0355"},
@@ -1416,8 +1443,8 @@ pyjsg = [
     {file = "PyJSG-0.11.10.tar.gz", hash = "sha256:4bd6e3ff2833fa2b395bbe803a2d72a5f0bab5b7285bccd0da1a1bc0aee88bfa"},
 ]
 pymdown-extensions = [
-    {file = "pymdown_extensions-9.4-py3-none-any.whl", hash = "sha256:5b7432456bf555ce2b0ab3c2439401084cda8110f24f6b3ecef952b8313dfa1b"},
-    {file = "pymdown_extensions-9.4.tar.gz", hash = "sha256:1baa22a60550f731630474cad28feb0405c8101f1a7ddc3ec0ed86ee510bcc43"},
+    {file = "pymdown_extensions-9.5-py3-none-any.whl", hash = "sha256:ec141c0f4983755349f0c8710416348d1a13753976c028186ed14f190c8061c4"},
+    {file = "pymdown_extensions-9.5.tar.gz", hash = "sha256:3ef2d998c0d5fa7eb09291926d90d69391283561cf6306f85cd588a5eb5befa0"},
 ]
 pyparsing = [
     {file = "pyparsing-3.0.9-py3-none-any.whl", hash = "sha256:5026bae9a10eeaefb61dab2f09052b9f4307d44aee4eda64b309723d8d206bbc"},
@@ -1514,8 +1541,8 @@ rdflib-shim = [
     {file = "rdflib_shim-1.0.3.tar.gz", hash = "sha256:d955d11e2986aab42b6830ca56ac6bc9c893abd1d049a161c6de2f1b99d4fc0d"},
 ]
 requests = [
-    {file = "requests-2.27.1-py2.py3-none-any.whl", hash = "sha256:f22fa1e554c9ddfd16e6e41ac79759e17be9e492b3587efa038054674760e72d"},
-    {file = "requests-2.27.1.tar.gz", hash = "sha256:68d7c56fd5a8999887728ef304a6d12edc7be74f1cfa47714fc8b414525c9a61"},
+    {file = "requests-2.28.0-py3-none-any.whl", hash = "sha256:bc7861137fbce630f17b03d3ad02ad0bf978c844f3536d0edda6499dafce2b6f"},
+    {file = "requests-2.28.0.tar.gz", hash = "sha256:d568723a7ebd25875d8d1eaf5dfa068cd2fc8194b2e483d7b1f7c81918dbec6b"},
 ]
 "ruamel.yaml" = [
     {file = "ruamel.yaml-0.17.21-py3-none-any.whl", hash = "sha256:742b35d3d665023981bd6d16b3d24248ce5df75fdb4e2924e93a05c1f8b61ca7"},
@@ -1569,8 +1596,8 @@ sparqlwrapper = [
     {file = "SPARQLWrapper-2.0.0.tar.gz", hash = "sha256:3fed3ebcc77617a4a74d2644b86fd88e0f32e7f7003ac7b2b334c026201731f1"},
 ]
 sphinx = [
-    {file = "Sphinx-4.5.0-py3-none-any.whl", hash = "sha256:ebf612653238bcc8f4359627a9b7ce44ede6fdd75d9d30f68255c7383d3a6226"},
-    {file = "Sphinx-4.5.0.tar.gz", hash = "sha256:7bf8ca9637a4ee15af412d1a1d9689fec70523a68ca9bb9127c2f3eeb344e2e6"},
+    {file = "Sphinx-5.0.1-py3-none-any.whl", hash = "sha256:36aa2a3c2f6d5230be94585bc5d74badd5f9ed8f3388b8eedc1726fe45b1ad30"},
+    {file = "Sphinx-5.0.1.tar.gz", hash = "sha256:f4da1187785a5bc7312cc271b0e867a93946c319d106363e102936a3d9857306"},
 ]
 sphinx-click = [
     {file = "sphinx-click-4.1.0.tar.gz", hash = "sha256:fedebd39991243ec5cfa1c9e483db7ea2621b3df2012315c89c6f1f3722f192b"},
diff --git a/pyproject.toml b/pyproject.toml
index cb8b4a7a..74a06c07 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ authors = [
 license = "MIT"
 
 [tool.poetry.dependencies]
-python = "^3.9"
+python = "^3.7.6"
 linkml-runtime = "^1.1.24"
 
 [tool.poetry.dev-dependencies]