diff --git a/Project.toml b/Project.toml
index afe0dbf..91ab27d 100644
--- a/Project.toml
+++ b/Project.toml
@@ -27,7 +27,7 @@ ArenaCaesarExt = "Caesar"
 Aqua = "0.8"
 Caesar = "0.16"
 ColorSchemes = "3"
-Colors = "0.12"
+Colors = "0.12, 0.13"
 DelimitedFiles = "1"
 DistributedFactorGraphs = "0.23, 0.24"
 DocStringExtensions = "0.9"