diff --git a/docs/Project.toml b/docs/Project.toml
index bdb6f71e..278b61c8 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -20,7 +20,7 @@ PyCall = "1"
 StaticArrays = "1"
 SymEngine = "0.13"
 SymPyPythonCall = "0.5"
-Symbolics = "6"
+Symbolics = "6, 7"
 
 [preferences.OrdinaryDiffEq]
 PrecompileAutoSpecialize = false