diff --git a/pyproject.toml b/pyproject.toml
index 34574c3..2191f09 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,7 @@ GitHub = "https://github.com/nhairs/python-json-logger"
 [project.optional-dependencies]
 dev = [
     ## Optional but required for dev
-    "orjson;implementation_name!='pypy'",
+    "orjson;implementation_name!='pypy';python_version<'3.13'",
     ## Lint
     "validate-pyproject[all]",
     "black",