diff --git a/Project.toml b/Project.toml
index f39d5dc83..03d5146ca 100644
--- a/Project.toml
+++ b/Project.toml
@@ -33,5 +33,6 @@ SafeTestsets = "0.0.1"
 SciMLBase = "1"
 StableRNGs = "1"
 SymbolicUtils = "0.19"
+Symbolics = "4"
 TermInterface = "0.2, 0.3"
 julia = "1.6"