diff --git a/Project.toml b/Project.toml
index 6af1959171..a0cb0d1589 100644
--- a/Project.toml
+++ b/Project.toml
@@ -33,14 +33,12 @@ CairoMakie = "13f3f980-e62b-5c42-98c6-ff1f3baf88f0"
 GraphMakie = "1ecd5474-83a3-4783-bb4f-06765db800d2"
 HomotopyContinuation = "f213a82b-91d6-5c5d-acf7-10f1c761b327"
 NetworkLayout = "46757867-2c16-5918-afeb-47bfcb05e46a"
-# StructuralIdentifiability = "220ca800-aa68-49bb-acd8-6037fa93a544"
 
 [extensions]
 CatalystBifurcationKitExtension = "BifurcationKit"
 CatalystCairoMakieExtension = "CairoMakie"
 CatalystGraphMakieExtension = ["GraphMakie", "NetworkLayout"]
 CatalystHomotopyContinuationExtension = "HomotopyContinuation"
-# CatalystStructuralIdentifiabilityExtension = "StructuralIdentifiability"
 
 [compat]
 BifurcationKit = "0.4.4"
@@ -58,7 +56,7 @@ JumpProcesses = "9.13.2"
 LaTeXStrings = "1.3.0"
 Latexify = "0.16.5"
 MacroTools = "0.5.5"
-ModelingToolkit = "< 9.60"
+ModelingToolkit = "< 9.60, 9"
 NetworkLayout = "0.4.7"
 Parameters = "0.12"
 Reexport = "0.2, 1.0"
@@ -66,7 +64,6 @@ Requires = "1.0"
 RuntimeGeneratedFunctions = "0.5.12"
 SciMLBase = "2.57.2"
 Setfield = "1"
-# StructuralIdentifiability = "0.5.8"
 SymbolicUtils = "< 3.8"
 Symbolics = "6.22"
 Unitful = "1.12.4"