diff --git a/Project.toml b/Project.toml
index 536f12d..b2208b8 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "SymPyPythonCall"
 uuid = "bc8888f7-b21e-4b7c-a06a-5d9c9496438c"
 authors = ["jverzani <jverzani@gmail.com> and contributors"]
-version = "0.3.0"
+version = "0.4.0"
 
 
 [deps]
@@ -13,12 +13,6 @@ PythonCall = "6099a3de-0909-46bc-b1f4-468b9a2dfc0d"
 SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
 SymPyCore = "458b697b-88f0-4a86-b56b-78b75cfb3531"
 
-[weakdeps]
-Symbolics = "0c5d862f-8b57-4792-8d23-62f2024744c7"
-
-[extensions]
-SymPyPythonCallSymbolicsExt = "Symbolics"
-
 [compat]
 CommonEq = "0.2.1"
 CommonSolve = "0.2"
@@ -26,16 +20,16 @@ CondaPkg = "0.2"
 LinearAlgebra = "1.6.1"
 PythonCall = "0.9"
 SpecialFunctions = "0.8, 0.9, 0.10, 1.0, 2"
-Symbolics = "5"
-SymbolicUtils = "1"
-SymPyCore = "0.2, 1"
+SymPyCore = "0.2.5, 1"
+TermInterface = "2"
 julia = "1.6.1"
 
 
 [extras]
-SymbolicUtils = "d1185830-fcd6-423d-90d6-eec64667417b"
-Symbolics = "0c5d862f-8b57-4792-8d23-62f2024744c7"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
+SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
+TermInterface = "8ea1fca8-c5ef-4a55-8b96-4e9afe9c9a3c"
 
 [targets]
-test = ["SymbolicUtils", "Symbolics", "Test"]
+test = ["Test", "LinearAlgebra", "SpecialFunctions", "TermInterface"]
diff --git a/test/runtests.jl b/test/runtests.jl
index a8b0f5d..8c3fd82 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -3,4 +3,4 @@ using SymPyPythonCall
 path = joinpath(pathof(SymPyPythonCall.SymPyCore), "../../test")
 include(joinpath(path, "runtests-sympycore.jl"))
 
-VERSION >= v"1.9.0" && include("test-extensions.jl")
+## VERSION >= v"1.9.0" && include("test-extensions.jl")