diff --git a/README.md b/README.md
index 385a339..3551ec2 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ If you only want to pull claims data added to the CMS system after a certain dat
 The expected format follows the typical
 ISO date time format of `yyyy-MM-dd'T'HH:mm:ss.SSSXXX+/-ZZ:ZZ`.
 
-The earliest date that `_since` works for is February 13th, 2020. Specifically: `2020-02-13T00:00:00.000-05:00`
+The earliest date that `_since` works for is January 1, 2020. Specifically: `2020-01-01T00:00:00.000-05:00`
 
 For requests using FHIR R4, a default `_since` value is supplied if one is not provided. The value of the default `_since` 
 parameter is set to the creation date and time of a contract's last successfully searched and downloaded job.