diff --git a/Project.toml b/Project.toml
index 5c271eb..b4b9798 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,6 +11,7 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 TimerOutputs = "a759f4b9-e2f1-59dc-863e-4aeb61b1ea8f"
 
 [compat]
+ITensors = "0.3"
 TimerOutputs = "0.5"
 julia = "1.10"