diff --git a/.github/workflows/pr_checks.yml b/.github/workflows/pr_checks.yml
index bad5ab3..766e58a 100644
--- a/.github/workflows/pr_checks.yml
+++ b/.github/workflows/pr_checks.yml
@@ -94,8 +94,8 @@ jobs:
     strategy:
       matrix:
         python_version: ["3.9", "3.10", "3.11", "3.12"]
-        pydantic_version: ["2.2.1", "2.3.0", "2.4.2", "2.5.0"]
-        pyyaml_version: ["5.4.1", "6.0"]
+        pydantic_version: ["2.2.1", "2.3.0", "2.4.2", "2.7.1"]
+        pyyaml_version: ["6.0.1"]
     runs-on: ubuntu-latest
     continue-on-error: true
     steps:
diff --git a/dev-requirements.txt b/dev-requirements.txt
index f91fc28..0d0d24b 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -2,11 +2,11 @@ black==23.3.0
 mypy==1.4.0
 nox>=2023
 packaging>=22.0
-pre-commit==2.9.3
+pre-commit==3.7.1
 pylint==2.10.0
 pytest==7.3.1
 pytest-cov==2.11.1
 requests-mock==1.8.0
 setuptools>=64.0.2
 types-PyYAML
-xenon==0.7.3
+xenon==0.9.1
diff --git a/noxfile.py b/noxfile.py
index 95bc821..39c9642 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -5,8 +5,8 @@
 
 # These should match what is in the `pr_checks.yml` file for CI runs
 TESTED_PYTHON_VERSIONS = ["3.9", "3.10", "3.11", "3.12"]
-TESTED_PYDANTIC_VERSIONS = ["2.2.1", "2.3.0", "2.4.2", "2.5.0"]
-TESTED_PYYAML_VERSIONS = ["5.4.1", "6.0"]
+TESTED_PYDANTIC_VERSIONS = ["2.2.1", "2.3.0", "2.4.2", "2.7.1"]
+TESTED_PYYAML_VERSIONS = ["5.5.1", "6.0.1"]
 
 
 def install_requirements(session: nox.Session) -> None:
diff --git a/pyproject.toml b/pyproject.toml
index 47a2608..c9befed 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,13 +9,12 @@ name = "fideslang"
 description = "Fides Taxonomy Language"
 dynamic = ["dependencies", "version"]
 readme = "README.md"
-requires-python = ">=3.8, <4"
+requires-python = ">=3.9, <4"
 authors = [{ name = "Ethyca, Inc.", email = "fidesteam@ethyca.com" }]
 license = { text = "Apache License 2.0" }
 classifiers = [
     "License :: OSI Approved :: Apache Software License",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
diff --git a/requirements.txt b/requirements.txt
index a9e0607..a7e5078 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-pydantic>=2.2.1,<=2.6.0
+pydantic>=2.2.1,<=2.7.1
 pyyaml>=5,<7
 packaging>=20.0
 bump-pydantic==0.8.0
\ No newline at end of file
diff --git a/src/fideslang/validation.py b/src/fideslang/validation.py
index cfd8c3b..007e238 100644
--- a/src/fideslang/validation.py
+++ b/src/fideslang/validation.py
@@ -3,7 +3,7 @@
 """
 import re
 from collections import Counter
-from typing import Dict, Generator, List, Optional, Pattern, Set, Tuple
+from typing import Dict, List, Optional, Pattern, Set, Tuple
 from typing_extensions import Annotated
 
 from packaging.version import Version