diff --git a/Project.toml b/Project.toml
index 1852b76..c9dad5f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "FastMPOContractions"
 uuid = "f6e391d2-8ffa-4d7a-98cd-7e70024481ca"
 authors = ["Hiroshi Shinaoka <h.shinaoka@gmail.com> and contributors"]
-version = "0.2.8"
+version = "0.2.9"
 
 [deps]
 ITensorMPS = "0d1a4710-d33b-49a5-8f18-73bdf49b47e2"
@@ -11,7 +11,7 @@ StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 
 [compat]
 ITensorMPS = "0.3.1"
-ITensors = "0.7"
+ITensors = "0.7, 0.8, 0.9"
 StaticArrays = "1"
 julia = "1"