diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Internal/SkeletonSubmeshGraphic.cs b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Internal/SkeletonSubmeshGraphic.cs
index 5159bb882..b34219f67 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Internal/SkeletonSubmeshGraphic.cs
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Internal/SkeletonSubmeshGraphic.cs
@@ -27,7 +27,13 @@
  * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *****************************************************************************/
 
+#if UNITY_2021_1_OR_NEWER
+#define HAS_LIST_POOL
+#endif
+
+using System.Collections.Generic;
 using UnityEngine;
+using UnityEngine.Pool;
 using UnityEngine.UI;
 
 namespace Spine.Unity {
@@ -53,5 +59,22 @@ namespace Spine.Unity {
 			base.OnEnable();
 			this.canvasRenderer.cull = false;
 		}
+
+#if HAS_LIST_POOL
+		public Material UpdateModifiedMaterial (Material baseMaterial) {
+			List<IMaterialModifier> modifierComponents = ListPool<IMaterialModifier>.Get();
+			GetComponents<IMaterialModifier>(modifierComponents);
+
+			Material currentMaterial = baseMaterial;
+			for (var i = 0; i < modifierComponents.Count; i++)
+				currentMaterial = modifierComponents[i].GetModifiedMaterial(currentMaterial);
+			ListPool<IMaterialModifier>.Release(modifierComponents);
+			return currentMaterial;
+		}
+#else
+		public Material UpdateModifiedMaterial (Material baseMaterial) {
+			return GetModifiedMaterial(baseMaterial);
+		}
+#endif
 	}
 }
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonGraphic.cs b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonGraphic.cs
index 43c8b45e4..bbc07a4bc 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonGraphic.cs
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonGraphic.cs
@@ -1193,7 +1193,7 @@ namespace Spine.Unity {
 
 			if (!UsesSingleSubmesh) {
 				for (int i = 0, count = sharedMaterials.Length; i < count; ++i) {
-					sharedMaterials[i] = submeshGraphics[i].GetModifiedMaterial(sharedMaterials[i]);
+					sharedMaterials[i] = submeshGraphics[i].UpdateModifiedMaterial(sharedMaterials[i]);
 				}
 			}
 		}
diff --git a/spine-unity/Assets/Spine/package.json b/spine-unity/Assets/Spine/package.json
index 476b67143..a5977fcaa 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": "4.3.32",
+	"version": "4.3.33",
 	"unity": "2018.3",
 	"author": {
 		"name": "Esoteric Software",