diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index ddede7e..4ecd74b 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -27,11 +27,14 @@ repos:
           - -b main
       - id: trailing-whitespace
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    # Ruff version.
     rev: v0.8.6
     hooks:
       - id: ruff
         args: [--fix, --exit-non-zero-on-fix]
+  - repo: https://github.com/abravalheri/validate-pyproject
+    rev: v0.23
+    hooks:
+      - id: validate-pyproject
   - repo: https://github.com/adrienverge/yamllint.git
     rev: v1.35.1
     hooks:
diff --git a/pyproject.toml b/pyproject.toml
index 9e70404..5362d94 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,15 +8,17 @@ authors = [
 ]
 description = "Python interface to the Sectigo Certificate Manager REST API"
 dynamic = [ "dependencies" ]
-homepage = "https://github.com/broadinstitute/python-cert_manager.git"
 keywords = ["sectigo", "comodo", "certificate"]
-license = "BSD-3-Clause"
+license = { text = "BSD-3-Clause" }
 name = "cert_manager"
 readme = "README.md"
-repository = "https://github.com/broadinstitute/python-cert_manager.git"
 requires-python = ">=3.9,<4.0.0"
 version = "2.4.0"
 
+[project.urls]
+homepage = "https://github.com/broadinstitute/python-cert_manager.git"
+repository = "https://github.com/broadinstitute/python-cert_manager.git"
+
 [tool.poetry.dependencies]
 requests = "^2.32.3"
 toml = "^0.10.2"