diff --git a/Project.toml b/Project.toml
index 2a4079d..fd0fdc9 100644
--- a/Project.toml
+++ b/Project.toml
@@ -22,7 +22,7 @@ Tables = "bd369af6-aec1-5ad0-b16a-f7cc5008161c"
 
 [compat]
 BitBasis = "0.9"
-CategoricalArrays = "0.10"
+CategoricalArrays = "0.10, 1"
 Combinatorics = "1"
 Dates = "1"
 Distributions = "0.25"