diff --git a/Project.toml b/Project.toml
index bad9d18..a873bc0 100644
--- a/Project.toml
+++ b/Project.toml
@@ -24,6 +24,7 @@ TCIT4AITensorCompatConversion = ["ITensors", "T4AITensorCompat"]
 [compat]
 BitIntegers = "0.3.5"
 EllipsisNotation = "1"
+ITensorMPS = "0.3"
 ITensors = "0.9"
 Optim = "1"
 QuadGK = "2.9"