diff --git a/Project.toml b/Project.toml
index 6d35e924..6b0d87ab 100644
--- a/Project.toml
+++ b/Project.toml
@@ -22,7 +22,7 @@ DiffEqBase = "6.190, 7"
 ForwardDiff = "0.10, 1"
 LinearAlgebra = "1.10"
 ModelingToolkit = "11"
-ModelingToolkitBase = "1"
+ModelingToolkitBase = "1.1"
 OrdinaryDiffEq = "6, 7"
 OrdinaryDiffEqBDF = "1, 2"
 OrdinaryDiffEqDefault = "1, 2"