diff --git a/internal/actions/update_test.go b/internal/actions/update_test.go
index 9209dcd..c09d4ba 100644
--- a/internal/actions/update_test.go
+++ b/internal/actions/update_test.go
@@ -371,7 +371,7 @@ var _ = Describe("the update action", func() {
 						ExposedPorts: map[nat.Port]struct{}{},
 					})
 
-				provider.SetStale(true)
+				provider.SetMarkedForUpdate(true)
 
 				consumer := CreateMockContainerWithConfig(
 					"test-container-consumer",
diff --git a/pkg/container/container.go b/pkg/container/container.go
index 000a33d..91067da 100644
--- a/pkg/container/container.go
+++ b/pkg/container/container.go
@@ -27,31 +27,31 @@ func NewContainer(containerInfo *types.ContainerJSON, imageInfo *types.ImageInsp
 
 // Container represents a running Docker container.
 type Container struct {
-	LinkedToRestarting bool
-	Stale              bool
+	linkedToRestarting bool
+	markedForUpdate    bool
 
 	containerInfo *types.ContainerJSON
 	imageInfo     *types.ImageInspect
 }
 
-// IsLinkedToRestarting returns the current value of the LinkedToRestarting field for the container
+// IsLinkedToRestarting returns the current value of the linkedToRestarting field for the container
 func (c *Container) IsLinkedToRestarting() bool {
-	return c.LinkedToRestarting
+	return c.linkedToRestarting
 }
 
-// IsStale returns the current value of the Stale field for the container
-func (c *Container) IsStale() bool {
-	return c.Stale
+// IsMarkedForUpdate returns the current value of the markedForUpdate field for the container
+func (c *Container) IsMarkedForUpdate() bool {
+	return c.markedForUpdate
 }
 
-// SetLinkedToRestarting sets the LinkedToRestarting field for the container
+// SetLinkedToRestarting sets the linkedToRestarting field for the container
 func (c *Container) SetLinkedToRestarting(value bool) {
-	c.LinkedToRestarting = value
+	c.linkedToRestarting = value
 }
 
-// SetStale implements sets the Stale field for the container
-func (c *Container) SetStale(value bool) {
-	c.Stale = value
+// SetMarkedForUpdate sets the markedForUpdate field for the container
+func (c *Container) SetMarkedForUpdate(value bool) {
+	c.markedForUpdate = value
 }
 
 // ContainerInfo fetches JSON info for the container
@@ -208,7 +208,7 @@ func (c Container) Links() []string {
 // ToRestart return whether the container should be restarted, either because
 // is stale or linked to another stale container.
 func (c Container) ToRestart() bool {
-	return c.Stale || c.LinkedToRestarting
+	return c.markedForUpdate || c.linkedToRestarting
 }
 
 // IsWatchtower returns a boolean flag indicating whether or not the current
diff --git a/pkg/types/container.go b/pkg/types/container.go
index cc8be9f..3c00fb0 100644
--- a/pkg/types/container.go
+++ b/pkg/types/container.go
@@ -64,8 +64,8 @@ type Container interface {
 	GetLifecycleCommand(LifecyclePhase) string
 	GetLifecycleTimeout(LifecyclePhase) time.Duration
 	VerifyConfiguration() error
-	SetStale(bool)
-	IsStale() bool
+	SetMarkedForUpdate(bool)
+	IsMarkedForUpdate() bool
 	IsNoPull(UpdateParams) bool
 	SetLinkedToRestarting(bool)
 	IsLinkedToRestarting() bool