diff --git a/test/Project.toml b/test/Project.toml
index 11505d90..87d4bcba 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -43,7 +43,7 @@ Glob = "1.3.1"
 Graphs = "1.12"
 GraphsFlows = "0.1.1"
 ITensorMPS = "0.3.6, 0.4"
-ITensorNetworks = "0.22"
+ITensorNetworks = "0.22, 0.21"
 ITensorPkgSkeleton = "0.3.42"
 ITensors = "0.7, 0.8, 0.9"
 KrylovKit = "0.8, 0.9, 0.10"