diff --git a/Project.toml b/Project.toml
index 52bf2a3..1446ba5 100644
--- a/Project.toml
+++ b/Project.toml
@@ -27,7 +27,7 @@ HubbardAtoms = "0.1.0"
 ITensors = "0.6"
 LocalCoverage = "0.8"
 OrderedCollections = "1"
-Quantics = "0.3"
+Quantics = "0.3, 0.4"
 QuanticsGrids = "0.3.1"
 SpecialFunctions = "2"
 TCIITensorConversion = "0.1"