diff --git a/Project.toml b/Project.toml
index ffe3a354a..e5028ec21 100644
--- a/Project.toml
+++ b/Project.toml
@@ -36,7 +36,7 @@ VegaLite = "112f6efa-9a02-5b7d-90c0-432ed331239a"
 CSVFiles = "0.16, 1.0"
 Classes = "1.2"
 DataFrames = "0.19.1, 0.20, 0.21, 0.22, 1.0"
-DataStructures = "0.17, 0.18"
+DataStructures = "0.17, 0.18, 0.19"
 DelimitedFiles = "1"
 Distributions = "0.21, 0.22, 0.23, 0.24, 0.25"
 Electron = "3.1, 4, 5, 6"