diff --git a/Project.toml b/Project.toml
index 7f20396..5baf27c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -29,7 +29,7 @@ Distributions = "0.25"
 Graphs = "1"
 IterTools = "1.4"
 MetaGraphs = "0.7"
-OMEinsum = "0.7"
+OMEinsum = "0.7, 0.8"
 PrettyTables = "2.2"
 SimpleTraits = "0.9"
 SimpleValueGraphs = "0.4"