diff --git a/Project.toml b/Project.toml
index 74226e0..f738fef 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "ParameterHandling"
 uuid = "2412ca09-6db7-441c-8e3a-88d5709968c5"
 authors = ["Invenia Technical Computing Corporation"]
-version = "0.4.5"
+version = "0.4.6"
 
 [deps]
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
@@ -15,7 +15,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
 ChainRulesCore = "0.9, 0.10, 1"
-Compat = "3"
+Compat = "3, 4"
 InverseFunctions = "0.1"
 IterTools = "1.3"
 LogExpFunctions = "0.3"