diff --git a/CAIPs/caip-1.md b/CAIPs/caip-1.md
index 90393832..c4e59761 100644
--- a/CAIPs/caip-1.md
+++ b/CAIPs/caip-1.md
@@ -5,6 +5,7 @@ status: Active
 type: Meta
 author: ligi <ligi@ligi.de>
 created: 2019-08-31
+updated: 2019-08-31
 ---
 
 ## What is an CAIP?
diff --git a/caip-template.md b/caip-template.md
index 10c3b857..0030dd9a 100644
--- a/caip-template.md
+++ b/caip-template.md
@@ -6,6 +6,7 @@ discussions-to: <URL>
 status: Draft
 type: <Standard | Meta | Informational>
 created: <date created on, in ISO 8601 (yyyy-mm-dd) format>
+updated: <date last updated, in ISO 8601 (yyyy-mm-dd) format>
 requires (*optional): <CAIP number(s)>
 replaces (*optional): <CAIP number(s)>
 ---