diff --git a/specs/FactSetEstimates.v2.yaml b/specs/FactSetEstimates.v2.yaml
index 024e3d7a40..61fa5dc334 100644
--- a/specs/FactSetEstimates.v2.yaml
+++ b/specs/FactSetEstimates.v2.yaml
@@ -4428,6 +4428,7 @@ components:
           type: number
           format: double
           example: 6420.267
+          nullable: true
         prevHigh:
           description: >-
             Refers to the highest value or estimate in a financial guidance