diff --git a/arclight-common/bukkit.at b/arclight-common/bukkit.at
index 00e00561..e7e49fa9 100644
--- a/arclight-common/bukkit.at
+++ b/arclight-common/bukkit.at
@@ -25,4 +25,5 @@ public org/bukkit/craftbukkit/v/inventory/CraftMetaKnowledgeBook/<init>(Lorg/buk
 public org/bukkit/craftbukkit/v/inventory/CraftMetaTropicalFishBucket
 public org/bukkit/craftbukkit/v/inventory/CraftMetaTropicalFishBucket/<init>(Lorg/bukkit/craftbukkit/v/inventory/CraftMetaItem;)V
 public org/bukkit/craftbukkit/v/inventory/CraftMetaCrossbow/<init>(Lorg/bukkit/craftbukkit/v/inventory/CraftMetaItem;)V
-public org/bukkit/craftbukkit/v/inventory/CraftMetaSuspiciousStew/<init>(Lorg/bukkit/craftbukkit/v/inventory/CraftMetaItem;)V
\ No newline at end of file
+public org/bukkit/craftbukkit/v/inventory/CraftMetaSuspiciousStew/<init>(Lorg/bukkit/craftbukkit/v/inventory/CraftMetaItem;)V
+public org/spigotmc/ActivationRange$ActivationType/boundingBox
\ No newline at end of file
diff --git a/arclight-forge-1.16/src/main/java/io/izzel/arclight/impl/bridge/EntityBridge_ActivationRange.java b/arclight-forge-1.16/src/main/java/io/izzel/arclight/impl/bridge/EntityBridge_ActivationRange.java
index 3d049627..a3609fb1 100644
--- a/arclight-forge-1.16/src/main/java/io/izzel/arclight/impl/bridge/EntityBridge_ActivationRange.java
+++ b/arclight-forge-1.16/src/main/java/io/izzel/arclight/impl/bridge/EntityBridge_ActivationRange.java
@@ -3,4 +3,6 @@ package io.izzel.arclight.impl.bridge;
 public interface EntityBridge_ActivationRange {
 
     void bridge$inactiveTick();
+
+    void bridge$updateActivation();
 }
diff --git a/arclight-forge-1.16/src/main/java/io/izzel/arclight/impl/mixin/optimization/general/activationrange/ActivationRangeMixin.java b/arclight-forge-1.16/src/main/java/io/izzel/arclight/impl/mixin/optimization/general/activationrange/ActivationRangeMixin.java
new file mode 100644
index 00000000..763b3493
--- /dev/null
+++ b/arclight-forge-1.16/src/main/java/io/izzel/arclight/impl/mixin/optimization/general/activationrange/ActivationRangeMixin.java
@@ -0,0 +1,26 @@
+package io.izzel.arclight.impl.mixin.optimization.general.activationrange;
+
+import io.izzel.arclight.impl.bridge.EntityBridge_ActivationRange;
+import net.minecraft.entity.Entity;
+import net.minecraft.util.ClassInheritanceMultiMap;
+import net.minecraft.world.chunk.Chunk;
+import org.spigotmc.ActivationRange;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Overwrite;
+
+@Mixin(value = ActivationRange.class, remap = false)
+public class ActivationRangeMixin {
+
+    /**
+     * @author IzzelAliz
+     * @reason entityLists
+     */
+    @Overwrite
+    private static void activateChunkEntities(Chunk chunk) {
+        for (ClassInheritanceMultiMap<Entity> entityList : chunk.entityLists) {
+            for (Entity entity : entityList) {
+                ((EntityBridge_ActivationRange) entity).bridge$updateActivation();
+            }
+        }
+    }
+}
diff --git a/arclight-forge-1.16/src/main/java/io/izzel/arclight/impl/mixin/optimization/general/activationrange/EntityMixin_ActivationRange.java b/arclight-forge-1.16/src/main/java/io/izzel/arclight/impl/mixin/optimization/general/activationrange/EntityMixin_ActivationRange.java
index b1dee40d..0941b9a7 100644
--- a/arclight-forge-1.16/src/main/java/io/izzel/arclight/impl/mixin/optimization/general/activationrange/EntityMixin_ActivationRange.java
+++ b/arclight-forge-1.16/src/main/java/io/izzel/arclight/impl/mixin/optimization/general/activationrange/EntityMixin_ActivationRange.java
@@ -1,9 +1,11 @@
 package io.izzel.arclight.impl.mixin.optimization.general.activationrange;
 
 import io.izzel.arclight.common.bridge.world.WorldBridge;
+import io.izzel.arclight.common.mod.ArclightConstants;
 import io.izzel.arclight.impl.bridge.EntityBridge_ActivationRange;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityType;
+import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.world.World;
 import org.spigotmc.ActivationRange;
 import org.spongepowered.asm.mixin.Mixin;
@@ -20,6 +22,7 @@ public abstract class EntityMixin_ActivationRange implements EntityBridge_Activa
     @Shadow public int ticksExisted;
     @Shadow public abstract void remove();
     @Shadow public World world;
+    @Shadow public abstract AxisAlignedBB getBoundingBox();
     // @formatter:on
 
     public ActivationRange.ActivationType activationType;
@@ -43,4 +46,15 @@ public abstract class EntityMixin_ActivationRange implements EntityBridge_Activa
     public void bridge$inactiveTick() {
         this.inactiveTick();
     }
+
+    @Override
+    public void bridge$updateActivation() {
+        if (ArclightConstants.currentTick > this.activatedTick) {
+            if (this.defaultActivationState) {
+                this.activatedTick = ArclightConstants.currentTick;
+            } else if (this.activationType.boundingBox.intersects(this.getBoundingBox())) {
+                this.activatedTick = ArclightConstants.currentTick;
+            }
+        }
+    }
 }
diff --git a/arclight-forge-1.16/src/main/resources/mixins.arclight.impl.optimization.1_16.json b/arclight-forge-1.16/src/main/resources/mixins.arclight.impl.optimization.1_16.json
index 33a2e412..0905cca1 100644
--- a/arclight-forge-1.16/src/main/resources/mixins.arclight.impl.optimization.1_16.json
+++ b/arclight-forge-1.16/src/main/resources/mixins.arclight.impl.optimization.1_16.json
@@ -6,6 +6,7 @@
   "mixins": [
     "ClassInheritanceMultiMapMixin",
     "VoxelShapesMixin",
+    "activationrange.ActivationRangeMixin",
     "activationrange.EntityMixin_ActivationRange",
     "activationrange.ServerWorldMixin_ActivationRange",
     "activationrange.entity.AbstractArrowEntityMixin_ActivationRange",