diff --git a/Project.toml b/Project.toml
index 5648b54..b593d0f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -24,6 +24,7 @@ TrajectoryOptimization = "c79d492b-0548-5874-b488-5a62c1d9d0ca"
 Altro = "0.3.0 - 0.3.0"
 BenchmarkTools = "0.5"
 ForwardDiff = "0.10"
+MeshCat = "0.13"
 Parameters = "0.12"
 RobotDynamics = "0.3.1 - 0.3.1"
 StaticArrays = "1.0"