diff --git a/Project.toml b/Project.toml
index 764f0a0..e623866 100644
--- a/Project.toml
+++ b/Project.toml
@@ -19,7 +19,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 StatsBase = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
 
 [compat]
-Catch22 = "0.4"
+Catch22 = "0.4, 0.5"
 DataFrames = "1"
 HypothesisTests = "0.10"
 IterTools = "1"