diff --git a/Project.toml b/Project.toml
index 4c9ce3791..ee3d1926d 100644
--- a/Project.toml
+++ b/Project.toml
@@ -40,7 +40,7 @@ Plots = "1.40"
 Printf = "1"
 Random = "1"
 RecipesBase = "1.1"
-TensorKit = "0.14"
+TensorKit = "0.14, 0.15"
 TensorKitManifolds = "0.7"
 TensorOperations = "5"
 Test = "1"