diff --git a/ITensorGaussianMPS/Project.toml b/ITensorGaussianMPS/Project.toml
index 8e5dcc6ebc..38e84ef4b1 100644
--- a/ITensorGaussianMPS/Project.toml
+++ b/ITensorGaussianMPS/Project.toml
@@ -10,5 +10,5 @@ LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 
 [compat]
 Compat = "3.40.0, 4"
-ITensors = "0.3.14"
+ITensors = "0.3.14, 0.5"
 julia = "1.6"