diff --git a/test/downstream/Project.toml b/test/downstream/Project.toml
index db1a40a1ca..c5b2c12a97 100644
--- a/test/downstream/Project.toml
+++ b/test/downstream/Project.toml
@@ -4,6 +4,7 @@ ModelingToolkit = "961ee093-0014-501f-94e3-6117800e7a78"
 Optimization = "7f7a1694-90dd-40f0-9382-eb1efda571ba"
 OptimizationOptimJL = "36348300-93cb-4f02-beb5-3c3902f8871e"
 OrdinaryDiffEq = "1dea7af3-3e70-54e6-95c3-0bf5283fa5ed"
+PyCall = "438e738f-606a-5dbb-bf0a-cddfbfd45ab0"
 SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
 SciMLSensitivity = "1ed8b502-d754-442c-8d5d-10ac956f44a1"
 Sundials = "c3572dad-4567-51f8-b174-8c6c989267f4"
@@ -13,6 +14,7 @@ Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
 [compat]
 BoundaryValueDiffEq = "5"
 ModelingToolkit = "8.37"
+PyCall = "1.96"
 Optimization = "3"
 OptimizationOptimJL = "0.1"
 OrdinaryDiffEq = "6.33"