diff --git a/Project.toml b/Project.toml
index e28a6868c..002d0f0a6 100644
--- a/Project.toml
+++ b/Project.toml
@@ -22,7 +22,7 @@ LinearAlgebra = "1.10"
 ModelingToolkit = "9.2"
 OrdinaryDiffEq = "6.72"
 SafeTestsets = "0.1"
-Symbolics = "5.20"
+Symbolics = "5.20, 6"
 Test = "1"
 julia = "1.10"