diff --git a/Project.toml b/Project.toml
index 7f20396..0993226 100644
--- a/Project.toml
+++ b/Project.toml
@@ -24,7 +24,7 @@ WhereTraits = "c9d4e05b-6318-49cb-9b56-e0e2b0ceadd8"
 
 [compat]
 Bijections = "0.1"
-DataStructures = "0.18"
+DataStructures = "0.18, 0.19"
 Distributions = "0.25"
 Graphs = "1"
 IterTools = "1.4"