diff --git a/Project.toml b/Project.toml
index 42c0c1815..81007065c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -38,7 +38,7 @@ ProjectionExt = "ExponentialFamilyProjection"
 
 [compat]
 BayesBase = "1.5.0"
-DataStructures = "0.18"
+DataStructures = "0.18, 0.19"
 Dates = "1.10"
 Distributions = "0.25"
 DomainSets = "0.5.2, 0.6, 0.7"