diff --git a/Project.toml b/Project.toml
index 5828d020..cc037dd6 100644
--- a/Project.toml
+++ b/Project.toml
@@ -64,6 +64,7 @@ OnlineStats = "1.5.8"
 Optim = "0.18, 0.19, 0.20, 0.21, 0.22, 1"
 Phylo = "0.4.18"
 Plots = "0.28.4, 0.29, 1"
+RasterDataSources = "0.5"
 Requires = "1"
 SpatialEcology = "0.9"
 StatsBase = "0.32.2, 0.33"