diff --git a/Project.toml b/Project.toml
index dce4615..2357c4b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -20,7 +20,7 @@ SplitApplyCombine = "03a91e81-4c3e-53e1-a0a4-9c0c8f19dd66"
 Compat = "3, 4"
 HDF5 = "0.15, 0.16, 0.17"
 ITensorMPS = "0.3"
-ITensors = "0.7, 0.8"
+ITensors = "0.7, 0.8, 0.9"
 Infinities = "0.1"
 IterTools = "1"
 KrylovKit = "0.5, 0.6, 0.7, 0.8, 0.9"