diff --git a/build.gradle b/build.gradle
index bfa8e04..1e4aeb7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 plugins {
     id "com.modrinth.minotaur" version "2.+"
-	id 'fabric-loom' version '1.7-SNAPSHOT'
+	id 'fabric-loom' version '1.9-SNAPSHOT'
 	id 'maven-publish'
 }
 
diff --git a/gradle.properties b/gradle.properties
index b767522..489352b 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,15 +1,15 @@
 org.gradle.jvmargs  = -Xmx1G
 
 #Fabric properties
-minecraft_version=1.21.1
-yarn_mappings=1.21.1+build.3
-loader_version=0.16.7
+minecraft_version=1.21.4
+yarn_mappings=1.21.4+build.7
+loader_version=0.16.9
 
 # Fabric API
-fabric_version=0.105.0+1.21.1
+fabric_version=0.114.0+1.21.4
 
 #Mod properties
-mod_version         = 0.9.6
+mod_version         = 0.9.7
 maven_group         = quimufu.structure_item
 archives_base_name  = structure_item
 
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index e644113..a4b76b9 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index df97d72..cea7a79 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.10.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.12-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/gradlew b/gradlew
index b740cf1..f5feea6 100755
--- a/gradlew
+++ b/gradlew
@@ -15,6 +15,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
 #
@@ -84,7 +86,8 @@ done
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
 # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
-APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s
+' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
diff --git a/gradlew.bat b/gradlew.bat
index 7101f8e..9b42019 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -13,6 +13,8 @@
 @rem See the License for the specific language governing permissions and
 @rem limitations under the License.
 @rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
 
 @if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
diff --git a/src/main/java/quimufu/structure_item/MyItem.java b/src/main/java/quimufu/structure_item/MyItem.java
index 5feb17d..96a07ed 100644
--- a/src/main/java/quimufu/structure_item/MyItem.java
+++ b/src/main/java/quimufu/structure_item/MyItem.java
@@ -34,9 +34,8 @@ import java.util.Optional;
 import static quimufu.structure_item.StructureItemMod.LOGGER;
 
 public class MyItem extends Item {
-    static Item.Settings p = new Item.Settings().fireproof().rarity(Rarity.RARE).maxCount(1);
 
-    public MyItem() {
+    public MyItem(Item.Settings p) {
         super(p);
     }
 
@@ -90,6 +89,19 @@ public class MyItem extends Item {
                             break;
                         }
                     }
+                } else if (tag.contains("whitelist", 9)) {
+                    texts.add(Text.translatable("item.structure_item.item.tooltip.whitelist"));
+                    NbtList bl = tag.getList("whitelist", 8);
+                    int i = 0;
+                    for (NbtElement entry : bl) {
+                        texts.add(Text.literal("  " + entry.asString()));
+                        i++;
+                        if (i == 4) {
+                            texts.add(Text.translatable("item.structure_item.item.tooltip.whitelist.more",
+                                    Text.literal(String.valueOf(bl.size() - i))));
+                            break;
+                        }
+                    }
                 }
                 if (!tag.contains("replaceEntities", 99) || tag.getBoolean("replaceEntities")) {
                     texts.add(Text.translatable("item.structure_item.item.tooltip.replaceEntities"));
@@ -261,6 +273,22 @@ public class MyItem extends Item {
 
                 }
                 ps.forbidOverwrite(blacklist);
+            } else if (tag.contains("whitelist", 9)) {
+                NbtList bl = tag.getList("whitelist", 8);
+                List<Block> whitelist = Lists.newArrayList();
+                for (NbtElement b : bl) {
+                    Block block = getBlock(b.asString());
+                    if (block != null) {
+                        whitelist.add(block);
+                    } else {
+                        Text message =
+                                Text.translatable("items.structure.spawner.invalid.block",
+                                        Text.literal(b.asString()));
+                        sendPlayerChat(player, message);
+                    }
+
+                }
+                ps.overwriteOnly(whitelist);
             }
 
 
diff --git a/src/main/java/quimufu/structure_item/MyPlacementSettings.java b/src/main/java/quimufu/structure_item/MyPlacementSettings.java
index bb5e714..b158eee 100644
--- a/src/main/java/quimufu/structure_item/MyPlacementSettings.java
+++ b/src/main/java/quimufu/structure_item/MyPlacementSettings.java
@@ -22,6 +22,7 @@ import java.util.List;
 
 public class MyPlacementSettings extends StructurePlacementData {
     private List<Block> blacklist;
+    private List<Block> whitelist;
     private World world;
     private Vec3i size;
     private boolean replaceEntities = true;
@@ -37,6 +38,7 @@ public class MyPlacementSettings extends StructurePlacementData {
             return;
         }
         blacklist = Lists.newArrayList(blocks);
+        this.whitelist = null;
     }
 
     public MyPlacementSettings setWorld(World w) {
@@ -57,6 +59,15 @@ public class MyPlacementSettings extends StructurePlacementData {
         this.replaceEntities = replaceEntities;
     }
 
+    public void overwriteOnly(List<Block> whitelist) {
+        if (whitelist.isEmpty()) {
+            this.whitelist = null;
+            return;
+        }
+        this.whitelist = Lists.newArrayList(whitelist);
+        this.blacklist = null;
+    }
+
     public class CheckingStructureProcess extends StructureProcessor {
 
         List<? extends Entity> entitiesWithinAABB;
@@ -79,7 +90,10 @@ public class MyPlacementSettings extends StructurePlacementData {
                     }
                 }
                 Block blockToCheck = world.getBlockState(posToCheck).getBlock();
-                if (blacklist.contains(blockToCheck)) {
+                if (blacklist != null && blacklist.contains(blockToCheck)) {
+                    throw new PlacementNotAllowedException(blockToCheck.getName(), posToCheck);
+                }
+                if (whitelist != null && !whitelist.contains(blockToCheck)) {
                     throw new PlacementNotAllowedException(blockToCheck.getName(), posToCheck);
                 }
             }
diff --git a/src/main/java/quimufu/structure_item/StructureItemMod.java b/src/main/java/quimufu/structure_item/StructureItemMod.java
index 892915c..f6a3e64 100644
--- a/src/main/java/quimufu/structure_item/StructureItemMod.java
+++ b/src/main/java/quimufu/structure_item/StructureItemMod.java
@@ -2,8 +2,13 @@ package quimufu.structure_item;
 
 import net.fabricmc.api.ModInitializer;
 import net.minecraft.item.Item;
+import net.minecraft.item.Items;
 import net.minecraft.registry.Registries;
 import net.minecraft.registry.Registry;
+import net.minecraft.registry.RegistryKey;
+import net.minecraft.registry.RegistryKeys;
+import net.minecraft.util.Identifier;
+import net.minecraft.util.Rarity;
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -15,12 +20,18 @@ public class StructureItemMod implements ModInitializer {
 
     public static final String MOD_ID = "structure_item";
     public static final String MOD_NAME = "Structure Item Mod (Fabric)";
-    public static final Item item = new MyItem();
+    public static final Item ITEM = Items.register(
+            RegistryKey.of(RegistryKeys.ITEM, Identifier.of(MOD_ID, "item")),
+            MyItem::new,
+            new Item.Settings()
+                    .fireproof()
+                    .rarity(Rarity.RARE)
+                    .maxCount(1)
+    );
 
     @Override
     public void onInitialize() {
         log(Level.INFO, "Initializing");
-        Registry.register(Registries.ITEM, MOD_ID + ":item", item);
     }
 
     public static void log(Level level, String message) {
diff --git a/src/main/resources/assets/structure_item/items/item.json b/src/main/resources/assets/structure_item/items/item.json
new file mode 100644
index 0000000..c97ecbf
--- /dev/null
+++ b/src/main/resources/assets/structure_item/items/item.json
@@ -0,0 +1,6 @@
+{
+  "model": {
+    "type": "minecraft:model",
+    "model": "structure_item:item/item"
+  }
+}
\ No newline at end of file
diff --git a/src/main/resources/assets/structure_item/lang/en_us.json b/src/main/resources/assets/structure_item/lang/en_us.json
index 840b9b6..9c7cdf0 100644
--- a/src/main/resources/assets/structure_item/lang/en_us.json
+++ b/src/main/resources/assets/structure_item/lang/en_us.json
@@ -22,6 +22,8 @@
   "item.structure_item.item.tooltip.dynamic.offset": "Dynamic offset",
   "item.structure_item.item.tooltip.blacklist": "Blacklist:",
   "item.structure_item.item.tooltip.blacklist.more": "  And %s more...",
+  "item.structure_item.item.tooltip.whitelist": "Whitelist:",
+  "item.structure_item.item.tooltip.whitelist.more": "  And %s more...",
   "item.structure_item.item.tooltip.replaceEntities": "Deletes Entities in the way",
   "item.structure_item.item.tooltip.doNotReplaceEntities": "Doesn't allow placement with entities in the way",
   "item.structure_item.item.tooltip.placeEntities": "Places contained Entities",
diff --git a/src/main/resources/assets/structure_item/models/item/item.json b/src/main/resources/assets/structure_item/models/item/item.json
index f13ea55..a55f302 100644
--- a/src/main/resources/assets/structure_item/models/item/item.json
+++ b/src/main/resources/assets/structure_item/models/item/item.json
@@ -1,6 +1,6 @@
 {
-    "parent": "item/handheld",
+    "parent": "minecraft:item/handheld",
     "textures": {
-        "layer0": "item/stick"
+        "layer0": "minecraft:item/stick"
     }
 }
\ No newline at end of file