diff --git a/stac_fastapi/types/setup.py b/stac_fastapi/types/setup.py
index e767b85e..a3f18f90 100644
--- a/stac_fastapi/types/setup.py
+++ b/stac_fastapi/types/setup.py
@@ -9,7 +9,7 @@
     "fastapi>=0.109.0",
     "attrs>=23.2.0",
     "pydantic-settings>=2",
-    "stac_pydantic~=3.1",
+    "stac_pydantic>=3.1.3,<4.0",
     "iso8601>=1.0.2,<2.2.0",
 ]