diff --git a/Project.toml b/Project.toml
index 25646fe..c6f97b7 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "Quantics"
 uuid = "87f76fb3-a40a-40c9-a63c-29fcfe7b7547"
 authors = ["Hiroshi Shinaoka <h.shinaoka@gmail.com> and contributors"]
-version = "0.4.5"
+version = "0.4.6"
 
 [deps]
 EllipsisNotation = "da5c29d0-fa7d-589e-88eb-ea29b0a81949"
@@ -25,7 +25,7 @@ QuantiscPartitionedMPSsExt = "PartitionedMPSs"
 EllipsisNotation = "1"
 FastMPOContractions = "^0.2.2"
 ITensorMPS = "0.3.1"
-ITensors = "0.7"
+ITensors = "0.7, 0.8, 0.9"
 PartitionedMPSs = "0.5.2, 0.6"
 QuanticsTCI = "0.7"
 SparseIR = "^0.96, 0.97, 1"