diff --git a/Project.toml b/Project.toml
index 5ba747b..84b240a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,6 +11,7 @@ Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
 Revise = "295af30f-e4ad-537b-8983-00126c2a3abe"
 
 [compat]
+GLMakie = "0.4"
 julia = "1"
 
 [extras]