diff --git a/I/IntervalArithmetic/Versions.toml b/I/IntervalArithmetic/Versions.toml
index 9ba576c8077573d..36ed9e62a38674f 100644
--- a/I/IntervalArithmetic/Versions.toml
+++ b/I/IntervalArithmetic/Versions.toml
@@ -105,3 +105,6 @@ git-tree-sha1 = "bcf09f65162273a429cffb7c06c0c1ef46a7f7c2"
 
 ["0.20.8"]
 git-tree-sha1 = "c1c88395d09366dae431556bcb598ad08fa1392b"
+
+["0.20.9"]
+git-tree-sha1 = "5ab7744289be503d76a944784bac3f2df7b809af"