diff --git a/examples/Project.toml b/examples/Project.toml
index e8117e4..96f0122 100644
--- a/examples/Project.toml
+++ b/examples/Project.toml
@@ -8,5 +8,5 @@ path = ".."
 
 [compat]
 ITensorGaussianMPS = "0.1"
-ITensorMPS = "0.3"
+ITensorMPS = "0.3, 0.4"
 LinearAlgebra = "1.10"