diff --git a/Project.toml b/Project.toml
index c5dd7f0..814428e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -18,7 +18,7 @@ Elliptic = "1.0.1"
 FresnelIntegrals = "0.2.0"
 HypergeometricFunctions = "0.3.28"
 PolyLog = "2.6.0"
-SymbolicUtils = "3"
+SymbolicUtils = "3, 4"
 Symbolics = "6.40.0"
 julia = "1.10"