diff --git a/Project.toml b/Project.toml
index ed668f493..78d28dfa1 100644
--- a/Project.toml
+++ b/Project.toml
@@ -37,7 +37,7 @@ Compose = "0.9"
 Contour = "0.5"
 CoupledFields = "0.1, 0.2"
 DataFrames = "0.21"
-DataStructures = "0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17"
+DataStructures = "0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18"
 Distributions = "0.16, 0.17, 0.18, 0.19, 0.20, 0.21, 0.22, 0.23"
 DocStringExtensions = "0.7, 0.8"
 Hexagons = "0.2"