diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ba9a808..1751b8ec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,3 +15,4 @@ ml).
 - [addend] #87 allocate, deallocate and live actions
 - [fixed] #89 save json on disk only for shapshots
 - [addend] #83 add owner_id in all kind of device
+- [fixed] #91 The most old time allow is 1970-01-01