diff --git a/Project.toml b/Project.toml
index 68dd0e57..31a49123 100644
--- a/Project.toml
+++ b/Project.toml
@@ -40,15 +40,7 @@ SteadyStateDiffEq = "1.16.0"
 julia = "1.8"
 
 [extras]
-BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"
-Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
-LaTeXStrings = "b964fa9f-0449-5b57-a5c2-d3ea65f4040f"
-Literate = "98b081ad-f1c9-55d3-8b20-4c87d4299306"
-Pardiso = "46dd5b70-b6fb-5a00-ae2d-e8fea33afaf2"
-Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
-Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
-QuantumOptics = "6e0679c1-51ea-5a7c-ac74-d61b76210b0c"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["BenchmarkTools", "Documenter", "LaTeXStrings", "Literate", "Pardiso", "Pkg", "Plots", "QuantumOptics", "Test"]
+test = ["Test"]
diff --git a/test/QuantumOptics/Project.toml b/test/QuantumOptics/Project.toml
new file mode 100644
index 00000000..8e9cfb09
--- /dev/null
+++ b/test/QuantumOptics/Project.toml
@@ -0,0 +1,3 @@
+[deps]
+HierarchicalEOM = "a62dbcb7-80f5-4d31-9a88-8b19fd92b128"
+QuantumOptics = "6e0679c1-51ea-5a7c-ac74-d61b76210b0c"
\ No newline at end of file
diff --git a/test/QOExt.jl b/test/QuantumOptics/QOExt.jl
similarity index 98%
rename from test/QOExt.jl
rename to test/QuantumOptics/QOExt.jl
index 0e62467d..42d0ea1a 100644
--- a/test/QOExt.jl
+++ b/test/QuantumOptics/QOExt.jl
@@ -1,3 +1,5 @@
+using QuantumOptics
+
 # System Hamiltonian and initial state
 basis = SpinBasis(1//2)
 σx = sigmax(basis)
diff --git a/test/runtests.jl b/test/runtests.jl
index 063e001b..2a3e00fc 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1,5 +1,4 @@
 using Test, Pkg
-using QuantumOptics
 using HierarchicalEOM
 using SparseArrays
 using LinearAlgebra
@@ -38,7 +37,10 @@ if GROUP == "HierarchicalEOM_CUDAExt"
 end
 
 if (GROUP == "All" || GROUP == "HierarchicalEOM_QOExt") && HAS_EXTENSIONS
+    Pkg.activate("QuantumOptics")
+    Pkg.develop(PackageSpec(path = dirname(@__DIR__)))
+    Pkg.instantiate()
     @testset "QuantumOptics Extension" begin
-        include("QOExt.jl")
+        include("QuantumOptics/QOExt.jl")
     end
 end
\ No newline at end of file