diff --git a/versions/1.1.0-dev.md b/versions/1.1.0-dev.md
index 8d74cc6..be8c7a6 100644
--- a/versions/1.1.0-dev.md
+++ b/versions/1.1.0-dev.md
@@ -33,7 +33,7 @@ The Overlay Specification is versioned using a `major`.`minor`.`patch` versionin
 
 ### Format
 
-An Overlay document that conforms to the Overlay Specification is itself a JSON object, which may be represented either in [[RFC7159|JSON]] or [[YAML|YAML]] format.
+An Overlay document that conforms to the Overlay Specification is itself a JSON object, which may be represented either in [[RFC8259|JSON]] or [[YAML|YAML]] format.
 
 All field names in the specification are **case sensitive**.
 This includes all fields that are used as keys in a map, except where explicitly noted that keys are **case insensitive**.