diff --git a/Project.toml b/Project.toml
index 791c715..d619488 100644
--- a/Project.toml
+++ b/Project.toml
@@ -66,6 +66,6 @@ SimpleTraits = "0.9.3"
 StaticArrays = "1"
 StatsPlots = "0.14.17"
 SymbolicUtils = "0.8.4, 0.9, 0.10, 0.11"
-Symbolics = "0.1.2"
+Symbolics = "4"
 Unitful = "1.5.0"
 julia = "1.6"