diff --git a/Project.toml b/Project.toml
index 7a79a198..907a941e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -28,6 +28,7 @@ Tullio = "bc48ee85-29a4-5162-ae0b-a64e1601d4bc"
 Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
 
 [compat]
+Compat = "4"
 Flux = "0.12, 0.13"
 Parameters = "0.12"
 Plots = "1"