diff --git a/src/main/java/dev/yurisuika/blossom/util/config/Config.java b/src/main/java/dev/yurisuika/blossom/util/config/Config.java
index a165a86..b0b7f74 100644
--- a/src/main/java/dev/yurisuika/blossom/util/config/Config.java
+++ b/src/main/java/dev/yurisuika/blossom/util/config/Config.java
@@ -7,6 +7,7 @@
 
 import java.io.File;
 import java.io.FileWriter;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 
 public class Config {
@@ -25,7 +26,7 @@ public static void setOptions(Options options) {
 
     public static void saveConfig() {
         try {
-            FileWriter fileWriter = new FileWriter(file);
+            FileWriter fileWriter = new FileWriter(file, StandardCharsets.UTF_8);
             fileWriter.write(gson.toJson(getOptions()));
             fileWriter.close();
         } catch (Exception e) {
diff --git a/src/main/java/dev/yurisuika/blossom/world/level/block/FloweringLeavesBlock.java b/src/main/java/dev/yurisuika/blossom/world/level/block/FloweringLeavesBlock.java
index 4a49126..b098307 100644
--- a/src/main/java/dev/yurisuika/blossom/world/level/block/FloweringLeavesBlock.java
+++ b/src/main/java/dev/yurisuika/blossom/world/level/block/FloweringLeavesBlock.java
@@ -14,7 +14,7 @@
 import net.minecraft.util.ParticleUtils;
 import net.minecraft.util.RandomSource;
 import net.minecraft.world.InteractionHand;
-import net.minecraft.world.InteractionResult;
+import net.minecraft.world.ItemInteractionResult;
 import net.minecraft.world.entity.LivingEntity;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.Item;
@@ -122,7 +122,7 @@ public void randomTick(BlockState state, ServerLevel level, BlockPos pos, Random
                 if (level.isRaining() && precipitation == Precipitation.RAIN) {
                     f = 5.0F;
                 }
-                if (random.nextInt((int)(25.0F / f) + 1) == 0) {
+                if (random.nextInt((int) (25.0F / f) + 1) == 0) {
                     level.setBlock(pos, defaultBlockState().setValue(AGE, i + 1)
                             .setValue(DISTANCE, state.getValue(DISTANCE))
                             .setValue(PERSISTENT, state.getValue(PERSISTENT))
@@ -248,7 +248,7 @@ public void performBonemeal(ServerLevel level, RandomSource random, BlockPos pos
         applyGrowth(level, pos, state);
     }
 
-    public InteractionResult useItemOn(BlockState state, Level level, BlockPos pos, Player player, InteractionHand hand, BlockHitResult hit) {
+    public ItemInteractionResult useItemOn(ItemStack stack, BlockState state, Level level, BlockPos pos, Player player, InteractionHand hand, BlockHitResult hit) {
         ItemStack itemStack = player.getItemInHand(hand);
         Item item = itemStack.getItem();
         if (item instanceof ShearsItem) {
@@ -263,9 +263,9 @@ public InteractionResult useItemOn(BlockState state, Level level, BlockPos pos,
                     .setValue(PERSISTENT, state.getValue(PERSISTENT))
                     .setValue(WATERLOGGED, state.getValue(WATERLOGGED))
             );
-            return InteractionResult.SUCCESS;
+            return ItemInteractionResult.SUCCESS;
         } else {
-            return InteractionResult.PASS;
+            return ItemInteractionResult.PASS_TO_DEFAULT_BLOCK_INTERACTION;
         }
     }
 
diff --git a/src/main/java/dev/yurisuika/blossom/world/level/block/FruitingLeavesBlock.java b/src/main/java/dev/yurisuika/blossom/world/level/block/FruitingLeavesBlock.java
index 56083ca..b5a1067 100644
--- a/src/main/java/dev/yurisuika/blossom/world/level/block/FruitingLeavesBlock.java
+++ b/src/main/java/dev/yurisuika/blossom/world/level/block/FruitingLeavesBlock.java
@@ -14,7 +14,7 @@
 import net.minecraft.util.Mth;
 import net.minecraft.util.RandomSource;
 import net.minecraft.world.InteractionHand;
-import net.minecraft.world.InteractionResult;
+import net.minecraft.world.ItemInteractionResult;
 import net.minecraft.world.entity.LivingEntity;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.Item;
@@ -125,7 +125,7 @@ public void randomTick(BlockState state, ServerLevel level, BlockPos pos, Random
                 if (level.isRaining() && precipitation == Precipitation.RAIN) {
                     f = 5.0F;
                 }
-                if (random.nextInt((int)(25.0F / f) + 1) == 0) {
+                if (random.nextInt((int) (25.0F / f) + 1) == 0) {
                     level.setBlock(pos,  defaultBlockState().setValue(AGE, i + 1)
                             .setValue(DISTANCE, state.getValue(DISTANCE))
                             .setValue(PERSISTENT, state.getValue(PERSISTENT))
@@ -255,7 +255,7 @@ public static void dropFruit(Level level, BlockPos pos, Item item, int bonus) {
         popResource(level, pos, new ItemStack(item, count));
     }
 
-    public InteractionResult useItemOn(BlockState state, Level level, BlockPos pos, Player player, InteractionHand hand, BlockHitResult hit) {
+    public ItemInteractionResult useItemOn(ItemStack stack, BlockState state, Level level, BlockPos pos, Player player, InteractionHand hand, BlockHitResult hit) {
         ItemStack itemStack = player.getItemInHand(hand);
         if (isMaxAge(state)) {
             Item item = itemStack.getItem();
@@ -273,9 +273,9 @@ public InteractionResult useItemOn(BlockState state, Level level, BlockPos pos,
                         .setValue(WATERLOGGED, state.getValue(WATERLOGGED))
                 );
             }
-            return InteractionResult.SUCCESS;
+            return ItemInteractionResult.SUCCESS;
         } else {
-            return InteractionResult.PASS;
+            return ItemInteractionResult.PASS_TO_DEFAULT_BLOCK_INTERACTION;
         }
     }
 
diff --git a/src/main/resources/blossom.mixins.json b/src/main/resources/blossom.mixins.json
index 031ac65..aa466b9 100644
--- a/src/main/resources/blossom.mixins.json
+++ b/src/main/resources/blossom.mixins.json
@@ -3,7 +3,7 @@
   "minVersion": "0.8",
   "package": "dev.yurisuika.blossom.mixin",
   "refmap": "blossom.refmap.json",
-  "compatibilityLevel": "JAVA_17",
+  "compatibilityLevel": "JAVA_21",
   "mixins": [
     "world.entity.EntityAccessor",
     "world.entity.MobAccessor",