diff --git a/pyproject.toml b/pyproject.toml
index 9410503..53f4759 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,6 +15,7 @@ dependencies = [
 
 [project.optional-dependencies]
 dev = [
+    "black",
     "mypy",
     "types-PyYAML",
     "types-Pygments",
@@ -23,6 +24,9 @@ dev = [
 [project.scripts]
 ossg = "omicron.ssg.cli:main"
 
+[tool.black]
+target-version = ["py314"]
+
 [tool.mypy]
 strict = true