diff --git a/Project.toml b/Project.toml
index cc8adbe6..0b3c758f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -18,6 +18,7 @@ UUIDs = "cf7118a7-6976-5b1a-9a39-7adc72f591a4"
 
 [compat]
 AlgebraicInterfaces = "0.1"
+Catlab = "0.16"
 Colors = "0.12"
 Crayons = "4"
 DataStructures = "0.18"