diff --git a/Project.toml b/Project.toml
index 32fdbb4..67ca459 100644
--- a/Project.toml
+++ b/Project.toml
@@ -39,6 +39,7 @@ Rotations = "1"
 Setfield = "0.7, 0.8, 1"
 StaticArrays = "1"
 Statistics = "1"
+Test = "< 0.0.1, 1.3"
 julia = "1.3, 1.4, 1.5"
 
 [pollen]