diff --git a/Project.toml b/Project.toml
index dc3be03e..c6377a9b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -45,7 +45,7 @@ Shapefile = "0.6"
 StatsBase = "0.32"
 Tables = "0.2"
 WeightedOnlineStats = "0.3, 0.4"
-Zarr = "0.3.1"
+Zarr = "0.3.1, 0.5"
 julia = "1.3"
 
 [extras]