diff --git a/Project.toml b/Project.toml
index 732858a675..70bc11f66c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -28,7 +28,7 @@ CSV = "0.10.4"
 Clustering = "0.14.2, 0.15"
 Combinatorics = "1.0.2"
 DataFrames = "1.3.4"
-DataStructures = "0.18.13"
+DataStructures = "0.18.13, 0.19"
 Dates = "1"
 Distances = "0.10.7"
 HiGHS = "1.1.4"