diff --git a/Project.toml b/Project.toml
index a2b4d62..6d39da6 100644
--- a/Project.toml
+++ b/Project.toml
@@ -17,7 +17,7 @@ LinearAlgebra = "1.10"
 PyCall = "1.96.2"
 SparseArrays = "1.1"
 SpecialFunctions = "0.7, 0.8, 0.8, 0.10, 1, 2"
-SymPyCore = ">=0.2.11"
+SymPyCore = "0.2.11,0.3"
 TermInterface = "2"
 julia = "1.10"