diff --git a/Project.toml b/Project.toml
index 75269fbf..5cade72a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -40,7 +40,7 @@ IterTools = "1"
 LinearAlgebra = "1.6, 1.7"
 Logging = "1.6, 1.7"
 MacroTools = "0.5"
-ModelingToolkit = "8.75"
+ModelingToolkit = "9"
 Nemo = "0.38.3, 0.39, 0.40, 0.41, 0.42, 0.43"
 ParamPunPam = "0.3"
 Pkg = "1.6, 1.7"
@@ -49,7 +49,7 @@ Primes = "0.5"
 Random = "1.6, 1.7"
 SpecialFunctions = "2"
 SymbolicUtils = "1.4, 1.5"
-Symbolics = "5.16"
+Symbolics = "5.20"
 Test = "1.6, 1.7"
 TestSetExtensions = "2"
 TimerOutputs = "0.5"
diff --git a/docs/Project.toml b/docs/Project.toml
index e449e2a5..30e21dee 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -7,5 +7,5 @@ StructuralIdentifiability = "220ca800-aa68-49bb-acd8-6037fa93a544"
 [compat]
 BenchmarkTools = "1.3"
 Documenter = "0.27, 1"
-ModelingToolkit = "8.74"
+ModelingToolkit = "9"
 StructuralIdentifiability = "0.5"