diff --git a/requirements.txt b/requirements.txt
index f76b7190..ba74d2f9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -177,7 +177,7 @@ pyarrow==14.0.2
     # via swmmanywhere (pyproject.toml)
 pydantic==2.5.3
     # via swmmanywhere (pyproject.toml)
-pydantic-core==2.18.2
+pydantic-core==2.14.6
     # via pydantic
 pyparsing==3.1.1
     # via