diff --git a/docs/Project.toml b/docs/Project.toml
index f02a6a3..3bc9a63 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -36,4 +36,4 @@ Plots = "1"
 SciMLWorkshop = "0.1"
 SparseDiffTools = "1"
 Sundials = "4.11.3"
-Symbolics = "4"
+Symbolics = "4, 5"