diff --git a/Project.toml b/Project.toml
index bf8777e..9eac1ce 100644
--- a/Project.toml
+++ b/Project.toml
@@ -16,7 +16,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
 [compat]
 CFTime = "0.1.1, 0.2"
-DataStructures = "0.17, 0.18"
+DataStructures = "0.17, 0.18, 0.19"
 Dates = "1"
 Preferences = "1.3"
 Printf = "1"