diff --git a/Project.toml b/Project.toml
index 30da5e1..e09faeb 100644
--- a/Project.toml
+++ b/Project.toml
@@ -13,6 +13,7 @@ Scratch = "6c6a2e73-6563-6170-7368-637461726353"
 [compat]
 Downloads = "1.0"
 HTTP = "0.9, 1"
+JSON3 = "1"
 PDDL = "0.2"
 Scratch = "1.1"
 julia = "1.3"