diff --git a/test/Project.toml b/test/Project.toml
index a0c21d9..953c84a 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -39,7 +39,7 @@ DiagonalArrays = "0.3.23"
 Dictionaries = "0.4.5"
 GradedArrays = "0.9.4"
 Graphs = "1.13.1"
-ITensorBase = "0.5"
+ITensorBase = "0.5, 0.6"
 ITensorNetworksNext = "0.4"
 ITensorPkgSkeleton = "0.3.42"
 MatrixAlgebraKit = "0.6"