diff --git a/Sources/Transition/HeroTransition+Animate.swift b/Sources/Transition/HeroTransition+Animate.swift
index 87862129..820b6f39 100644
--- a/Sources/Transition/HeroTransition+Animate.swift
+++ b/Sources/Transition/HeroTransition+Animate.swift
@@ -24,7 +24,7 @@
 import UIKit
 
 extension HeroTransition {
-  open func animate() {
+  public func animate() {
     guard state == .starting else { return }
     state = .animating
 
diff --git a/Sources/Transition/HeroTransition+Complete.swift b/Sources/Transition/HeroTransition+Complete.swift
index 80137904..d01f85c1 100644
--- a/Sources/Transition/HeroTransition+Complete.swift
+++ b/Sources/Transition/HeroTransition+Complete.swift
@@ -25,7 +25,7 @@
 import UIKit
 
 extension HeroTransition {
-  open func complete(finished: Bool) {
+  public func complete(finished: Bool) {
     if state == .notified {
       forceFinishing = finished
     }
diff --git a/Sources/Transition/HeroTransition+Start.swift b/Sources/Transition/HeroTransition+Start.swift
index 3bcd666a..2eefed22 100644
--- a/Sources/Transition/HeroTransition+Start.swift
+++ b/Sources/Transition/HeroTransition+Start.swift
@@ -25,7 +25,7 @@
 import UIKit
 
 extension HeroTransition {
-  open func start() {
+  public func start() {
     guard state == .notified else { return }
     state = .starting