diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Base/SkeletonAnimationBase.cs b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Base/SkeletonAnimationBase.cs
index e2c21204f..a290b3d74 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Base/SkeletonAnimationBase.cs
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Base/SkeletonAnimationBase.cs
@@ -93,7 +93,7 @@ namespace Spine.Unity {
 #if USE_THREADED_ANIMATION_UPDATE
 		#region Threaded update system
 		[SerializeField] protected SettingsTriState threadedAnimation = SettingsTriState.UseGlobalSetting;
-		public bool isUpdatedExternally = false;
+		protected bool isUpdatedExternally = false;
 
 		public bool IsUpdatedExternally {
 			get { return isUpdatedExternally; }
diff --git a/spine-unity/Assets/Spine/package.json b/spine-unity/Assets/Spine/package.json
index dbd446fed..735b56e76 100644
--- a/spine-unity/Assets/Spine/package.json
+++ b/spine-unity/Assets/Spine/package.json
@@ -2,7 +2,7 @@
 	"name": "com.esotericsoftware.spine.spine-unity",
 	"displayName": "spine-unity Runtime",
 	"description": "This plugin provides the spine-unity runtime core and examples. Spine Examples can be installed via the Samples tab.",
-	"version": "4.3.25",
+	"version": "4.3.26",
 	"unity": "2018.3",
 	"author": {
 		"name": "Esoteric Software",