diff --git a/Workflow/Sources/SubtreeManager.swift b/Workflow/Sources/SubtreeManager.swift
index c7ca3fd5e..76711ab29 100644
--- a/Workflow/Sources/SubtreeManager.swift
+++ b/Workflow/Sources/SubtreeManager.swift
@@ -15,7 +15,6 @@
  */
 
 import Dispatch
-import ReactiveSwift
 
 extension WorkflowNode {
     /// Manages the subtree of a workflow. Specifically, this type encapsulates the logic required to update and manage
@@ -391,8 +390,6 @@ extension WorkflowNode.SubtreeManager {
         private let node: WorkflowNode<W>
         private var outputMap: (W.Output) -> AnyWorkflowAction<WorkflowType>
 
-        private let (lifetime, token) = ReactiveSwift.Lifetime.make()
-
         init(workflow: W, outputMap: @escaping (W.Output) -> AnyWorkflowAction<WorkflowType>, eventPipe: EventPipe) {
             self.outputMap = outputMap
             self.node = WorkflowNode<W>(workflow: workflow)
diff --git a/Workflow/Sources/Workflow.swift b/Workflow/Sources/Workflow.swift
index 86ac9fb4d..2ad5f262e 100644
--- a/Workflow/Sources/Workflow.swift
+++ b/Workflow/Sources/Workflow.swift
@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-import ReactiveSwift
-
 /// Defines a node in the workflow tree.
 ///
 /// ***
diff --git a/Workflow/Sources/WorkflowNode.swift b/Workflow/Sources/WorkflowNode.swift
index a12c11d6a..38e592227 100644
--- a/Workflow/Sources/WorkflowNode.swift
+++ b/Workflow/Sources/WorkflowNode.swift
@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-import ReactiveSwift
-
 /// Manages a running workflow.
 final class WorkflowNode<WorkflowType: Workflow> {
     /// Holds the current state of the workflow
diff --git a/Workflow/Tests/WorkflowNodeTests.swift b/Workflow/Tests/WorkflowNodeTests.swift
index f49d2fb32..7a124e660 100644
--- a/Workflow/Tests/WorkflowNodeTests.swift
+++ b/Workflow/Tests/WorkflowNodeTests.swift
@@ -17,8 +17,6 @@
 import XCTest
 @testable import Workflow
 
-import ReactiveSwift
-
 final class WorkflowNodeTests: XCTestCase {
     func test_rendersSimpleWorkflow() {
         let node = WorkflowNode(workflow: SimpleWorkflow(string: "Foo"))