diff --git a/test/executor_test.rb b/test/executor_test.rb
index dd45176604..d353f3fd70 100644
--- a/test/executor_test.rb
+++ b/test/executor_test.rb
@@ -247,10 +247,10 @@ def unload_rubocop_runner
   end
 
   def stub_dependencies(rubocop:, syntax_tree:)
+    Singleton.__init__(RubyLsp::DependencyDetector)
     dependencies = {}
     dependencies["syntax_tree"] = "..." if syntax_tree
     dependencies["rubocop"] = "..." if rubocop
     Bundler.locked_gems.stubs(:dependencies).returns(dependencies)
-    Singleton.__init__(RubyLsp::DependencyDetector)
   end
 end
diff --git a/test/requests/code_lens_expectations_test.rb b/test/requests/code_lens_expectations_test.rb
index 9d294e3b4d..c9846d3a4f 100644
--- a/test/requests/code_lens_expectations_test.rb
+++ b/test/requests/code_lens_expectations_test.rb
@@ -19,6 +19,7 @@ def run_expectations(source)
   end
 
   def test_command_generation_for_test_unit
+    stub_test_library("test-unit")
     source = <<~RUBY
       class FooTest < Test::Unit::TestCase
         def test_bar; end
@@ -29,7 +30,6 @@ def test_bar; end
     document = RubyLsp::Document.new(source: source, version: 1, uri: uri)
 
     emitter = RubyLsp::EventEmitter.new
-    stub_test_library("test-unit")
     listener = RubyLsp::Requests::CodeLens.new(uri, emitter, @message_queue)
     emitter.visit(document.tree)
     response = listener.response
@@ -161,7 +161,7 @@ def on_class(node)
   end
 
   def stub_test_library(name)
-    RubyLsp::DependencyDetector.instance.stubs(:detected_test_library).returns(name)
     Singleton.__init__(RubyLsp::DependencyDetector)
+    RubyLsp::DependencyDetector.instance.stubs(:detected_test_library).returns(name)
   end
 end
diff --git a/test/requests/support/dependency_detector_test.rb b/test/requests/support/dependency_detector_test.rb
index 5d197f6f53..ad837c70d3 100644
--- a/test/requests/support/dependency_detector_test.rb
+++ b/test/requests/support/dependency_detector_test.rb
@@ -47,8 +47,8 @@ def test_direct_dependency_returns_false_outside_of_bundle
     private
 
     def stub_dependencies(dependencies)
-      Bundler.locked_gems.stubs(dependencies: dependencies)
       Singleton.__init__(RubyLsp::DependencyDetector)
+      Bundler.locked_gems.stubs(dependencies: dependencies)
     end
   end
 end