diff --git a/pyproject.toml b/pyproject.toml
index e948f11a..774938df 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ dependencies = [
     "nmdc-submission-schema==10.8.0",
     "pint==0.18",
     "psycopg2==2.9.3",
-    "pydantic==1.10.2",
+    "pydantic==1.10.13",
     "pymongo>=4.0.0",
     "python-dateutil",
     "python-dotenv",