diff --git a/Project.toml b/Project.toml
index 4ca0288..400ab1e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -17,7 +17,7 @@ OrderedCollections = "bac558e1-5e72-5ebc-8fee-abe8a469f55d"
 [compat]
 AWS = "1"
 AWSS3 = "0.8, 0.9"
-Compat = "3.15"
+Compat = "3.15, 4"
 ContextVariablesX = "0.1.1"
 DataStructures = "0.17, 0.18"
 FilePathsBase = "0.6, 0.7, 0.8, 0.9"