diff --git a/test/Project.toml b/test/Project.toml
index 00cb823..80e4417 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -9,5 +9,6 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 [compat]
 Aqua = "0.8"
 DifferentiationInterface = "0.5"
+JSON3 = "1"
 JLD2 = "0.5"
 Plots = "1"