diff --git a/poetry.lock b/poetry.lock
index f5cc6a9..ba48a8c 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -42,9 +42,40 @@ files = [
     {file = "Babel-2.14.0.tar.gz", hash = "sha256:6919867db036398ba21eb5c7a0f6b28ab8cbc3ae7a73a44ebe34ae74a4e7d363"},
 ]
 
+[package.dependencies]
+pytz = {version = ">=2015.7", markers = "python_version < \"3.9\""}
+
 [package.extras]
 dev = ["freezegun (>=1.0,<2.0)", "pytest (>=6.0)", "pytest-cov"]
 
+[[package]]
+name = "backports-zoneinfo"
+version = "0.2.1"
+description = "Backport of the standard library zoneinfo module"
+optional = false
+python-versions = ">=3.6"
+files = [
+    {file = "backports.zoneinfo-0.2.1-cp36-cp36m-macosx_10_14_x86_64.whl", hash = "sha256:da6013fd84a690242c310d77ddb8441a559e9cb3d3d59ebac9aca1a57b2e18bc"},
+    {file = "backports.zoneinfo-0.2.1-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:89a48c0d158a3cc3f654da4c2de1ceba85263fafb861b98b59040a5086259722"},
+    {file = "backports.zoneinfo-0.2.1-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:1c5742112073a563c81f786e77514969acb58649bcdf6cdf0b4ed31a348d4546"},
+    {file = "backports.zoneinfo-0.2.1-cp36-cp36m-win32.whl", hash = "sha256:e8236383a20872c0cdf5a62b554b27538db7fa1bbec52429d8d106effbaeca08"},
+    {file = "backports.zoneinfo-0.2.1-cp36-cp36m-win_amd64.whl", hash = "sha256:8439c030a11780786a2002261569bdf362264f605dfa4d65090b64b05c9f79a7"},
+    {file = "backports.zoneinfo-0.2.1-cp37-cp37m-macosx_10_14_x86_64.whl", hash = "sha256:f04e857b59d9d1ccc39ce2da1021d196e47234873820cbeaad210724b1ee28ac"},
+    {file = "backports.zoneinfo-0.2.1-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:17746bd546106fa389c51dbea67c8b7c8f0d14b5526a579ca6ccf5ed72c526cf"},
+    {file = "backports.zoneinfo-0.2.1-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:5c144945a7752ca544b4b78c8c41544cdfaf9786f25fe5ffb10e838e19a27570"},
+    {file = "backports.zoneinfo-0.2.1-cp37-cp37m-win32.whl", hash = "sha256:e55b384612d93be96506932a786bbcde5a2db7a9e6a4bb4bffe8b733f5b9036b"},
+    {file = "backports.zoneinfo-0.2.1-cp37-cp37m-win_amd64.whl", hash = "sha256:a76b38c52400b762e48131494ba26be363491ac4f9a04c1b7e92483d169f6582"},
+    {file = "backports.zoneinfo-0.2.1-cp38-cp38-macosx_10_14_x86_64.whl", hash = "sha256:8961c0f32cd0336fb8e8ead11a1f8cd99ec07145ec2931122faaac1c8f7fd987"},
+    {file = "backports.zoneinfo-0.2.1-cp38-cp38-manylinux1_i686.whl", hash = "sha256:e81b76cace8eda1fca50e345242ba977f9be6ae3945af8d46326d776b4cf78d1"},
+    {file = "backports.zoneinfo-0.2.1-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:7b0a64cda4145548fed9efc10322770f929b944ce5cee6c0dfe0c87bf4c0c8c9"},
+    {file = "backports.zoneinfo-0.2.1-cp38-cp38-win32.whl", hash = "sha256:1b13e654a55cd45672cb54ed12148cd33628f672548f373963b0bff67b217328"},
+    {file = "backports.zoneinfo-0.2.1-cp38-cp38-win_amd64.whl", hash = "sha256:4a0f800587060bf8880f954dbef70de6c11bbe59c673c3d818921f042f9954a6"},
+    {file = "backports.zoneinfo-0.2.1.tar.gz", hash = "sha256:fadbfe37f74051d024037f223b8e001611eac868b5c5b06144ef4d8b799862f2"},
+]
+
+[package.extras]
+tzdata = ["tzdata"]
+
 [[package]]
 name = "black"
 version = "23.12.0"
@@ -104,6 +135,7 @@ files = [
 
 [package.dependencies]
 colorama = {version = "*", markers = "os_name == \"nt\""}
+importlib-metadata = {version = ">=4.6", markers = "python_version < \"3.10\""}
 packaging = ">=19.0"
 pyproject_hooks = "*"
 tomli = {version = ">=1.1.0", markers = "python_version < \"3.11\""}
@@ -518,6 +550,7 @@ files = [
 
 [package.dependencies]
 asgiref = ">=3.6.0,<4"
+"backports.zoneinfo" = {version = "*", markers = "python_version < \"3.9\""}
 sqlparse = ">=0.3.1"
 tzdata = {version = "*", markers = "sys_platform == \"win32\""}
 
@@ -763,6 +796,7 @@ files = [
 
 [package.dependencies]
 python-dateutil = ">=2.4"
+typing-extensions = {version = ">=3.10.0.1", markers = "python_version <= \"3.8\""}
 
 [[package]]
 name = "fastjsonschema"
@@ -838,6 +872,24 @@ docs = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.link
 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 = "importlib-resources"
+version = "6.1.1"
+description = "Read resources from Python packages"
+optional = true
+python-versions = ">=3.8"
+files = [
+    {file = "importlib_resources-6.1.1-py3-none-any.whl", hash = "sha256:e8bf90d8213b486f428c9c39714b920041cb02c184686a3dee24905aaa8105d6"},
+    {file = "importlib_resources-6.1.1.tar.gz", hash = "sha256:3893a00122eafde6894c59914446a512f728a0c1a45f9bb9b63721b6bacf0b4a"},
+]
+
+[package.dependencies]
+zipp = {version = ">=3.1.0", markers = "python_version < \"3.10\""}
+
+[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 = ["pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-mypy (>=0.9.1)", "pytest-ruff", "zipp (>=3.17)"]
+
 [[package]]
 name = "installer"
 version = "0.7.0"
@@ -909,6 +961,7 @@ files = [
 
 [package.dependencies]
 importlib-metadata = {version = ">=4.11.4", markers = "python_version < \"3.12\""}
+importlib-resources = {version = "*", markers = "python_version < \"3.9\""}
 "jaraco.classes" = "*"
 jeepney = {version = ">=0.4.2", markers = "sys_platform == \"linux\""}
 pywin32-ctypes = {version = ">=0.2.0", markers = "sys_platform == \"win32\""}
@@ -1211,6 +1264,7 @@ cleo = ">=2.1.0,<3.0.0"
 crashtest = ">=0.4.1,<0.5.0"
 dulwich = ">=0.21.2,<0.22.0"
 fastjsonschema = ">=2.18.0,<3.0.0"
+importlib-metadata = {version = ">=4.4", markers = "python_version < \"3.10\""}
 installer = ">=0.7.0,<0.8.0"
 keyring = ">=24.0.0,<25.0.0"
 packaging = ">=20.5"
@@ -1257,13 +1311,13 @@ poetry-core = ">=1.7.0,<2.0.0"
 
 [[package]]
 name = "pre-commit"
-version = "3.6.0"
+version = "3.5.0"
 description = "A framework for managing and maintaining multi-language pre-commit hooks."
 optional = true
-python-versions = ">=3.9"
+python-versions = ">=3.8"
 files = [
-    {file = "pre_commit-3.6.0-py2.py3-none-any.whl", hash = "sha256:c255039ef399049a5544b6ce13d135caba8f2c28c3b4033277a788f434308376"},
-    {file = "pre_commit-3.6.0.tar.gz", hash = "sha256:d30bad9abf165f7785c15a21a1f46da7d0677cb00ee7ff4c579fd38922efe15d"},
+    {file = "pre_commit-3.5.0-py2.py3-none-any.whl", hash = "sha256:841dc9aef25daba9a0238cd27984041fa0467b4199fc4852e27950664919f660"},
+    {file = "pre_commit-3.5.0.tar.gz", hash = "sha256:5804465c675b659b0862f07907f96295d490822a450c4c40e747d0b1c6ebcb32"},
 ]
 
 [package.dependencies]
@@ -1333,6 +1387,7 @@ mccabe = ">=0.6,<0.8"
 platformdirs = ">=2.2.0"
 tomli = {version = ">=1.1.0", markers = "python_version < \"3.11\""}
 tomlkit = ">=0.10.1"
+typing-extensions = {version = ">=3.10.0", markers = "python_version < \"3.10\""}
 
 [package.extras]
 spelling = ["pyenchant (>=3.2,<4.0)"]
@@ -1398,6 +1453,17 @@ files = [
 [package.dependencies]
 six = ">=1.5"
 
+[[package]]
+name = "pytz"
+version = "2023.3.post1"
+description = "World timezone definitions, modern and historical"
+optional = false
+python-versions = "*"
+files = [
+    {file = "pytz-2023.3.post1-py2.py3-none-any.whl", hash = "sha256:ce42d816b81b68506614c11e8937d3aa9e41007ceb50bfdcb0749b921bf646c7"},
+    {file = "pytz-2023.3.post1.tar.gz", hash = "sha256:7b4fddbeb94a1eba4b557da24f19fdf9db575192544270a9101d8509f9f43d7b"},
+]
+
 [[package]]
 name = "pywin32-ctypes"
 version = "0.2.2"
@@ -1891,10 +1957,10 @@ docs = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.link
 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"]
 
 [extras]
-dev = ["isort", "poetry", "pre-commit", "ruff"]
-test = ["black", "coverage", "pylint", "pylint-django"]
+dev = ["isort", "pre-commit", "ruff"]
+test = ["black", "coverage", "poetry", "pylint", "pylint-django"]
 
 [metadata]
 lock-version = "2.0"
-python-versions = "^3.10"
-content-hash = "68b04890908082935f62257399ea0518a1e55f6aadce7ec4c5f591e0eb616bd1"
+python-versions = "^3.8"
+content-hash = "5a84c6a91069445359c16f074909edb368a09d65dd448ec30abd2c4a94e5d8ca"
diff --git a/pyproject.toml b/pyproject.toml
index 740620c..bc50b1d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ classifiers = [
 ]
 
 [tool.poetry.dependencies]
-python = "^3.10"
+python = "^3.8"
 odin = "^2.9"
 django-oscar = "^3.2"
 coverage = { version = "^7.3", optional = true }
@@ -34,7 +34,7 @@ pylint-django = { version = "^2.5.5", optional = true }
 isort = {version = "^5.13.2", optional = true}
 ruff = {version = "^0.1.8", optional = true}
 poetry = {version = "^1.7.1", optional = true}
-pre-commit = {version = "^3.6.0", optional = true}
+pre-commit = {version = "*", optional = true}
 
 
 [tool.poetry.extras]
@@ -62,5 +62,5 @@ ignore = [
     "C901",  # too complex
 ]
 
-# Assume Python 3.10.
-target-version = "py310"
+# Assume Python 3.8.
+target-version = "py38"