diff --git a/gradle.properties b/gradle.properties
index 3364bb2a..50c85010 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,7 +3,7 @@ org.gradle.jvmargs=-Xmx1G
 
 # Fabric Properties
 	# check https://fabricmc.net/develop/
-	minecraft_version=1.20.2-pre2
+	minecraft_version=1.20.2-pre4
 	loader_version=0.14.22
 	jsr305_version=3.0.2
 	fabric_version=0.88.2+1.20.2
diff --git a/src/main/java/carpet/helpers/BlockRotator.java b/src/main/java/carpet/helpers/BlockRotator.java
index 6794f9bb..ea876368 100644
--- a/src/main/java/carpet/helpers/BlockRotator.java
+++ b/src/main/java/carpet/helpers/BlockRotator.java
@@ -2,8 +2,8 @@ package carpet.helpers;
 
 import carpet.fakes.PistonBlockInterface;
 import net.minecraft.core.BlockPos;
-import net.minecraft.core.BlockSource;
 import net.minecraft.core.Direction;
+import net.minecraft.core.dispenser.BlockSource;
 import net.minecraft.core.dispenser.DispenseItemBehavior;
 import net.minecraft.core.dispenser.OptionalDispenseItemBehavior;
 import net.minecraft.world.InteractionHand;
@@ -51,9 +51,9 @@ public class BlockRotator
 
     public static ItemStack dispenserRotate(BlockSource source, ItemStack stack)
     {
-        Direction sourceFace = source.getBlockState().getValue(DispenserBlock.FACING);
-        Level world = source.getLevel();
-        BlockPos blockpos = source.getPos().relative(sourceFace); // offset
+        Direction sourceFace = source.state().getValue(DispenserBlock.FACING);
+        Level world = source.level();
+        BlockPos blockpos = source.pos().relative(sourceFace); // offset
         BlockState blockstate = world.getBlockState(blockpos);
         Block block = blockstate.getBlock();
 
@@ -100,7 +100,7 @@ public class BlockRotator
             }
         }
         // Send block update to the block that just have been rotated.
-        world.neighborChanged(blockpos, block, source.getPos());
+        world.neighborChanged(blockpos, block, source.pos());
 
         return stack;
     }
diff --git a/src/main/java/carpet/script/argument/FileArgument.java b/src/main/java/carpet/script/argument/FileArgument.java
index c5e3cb53..dbc05859 100644
--- a/src/main/java/carpet/script/argument/FileArgument.java
+++ b/src/main/java/carpet/script/argument/FileArgument.java
@@ -461,7 +461,7 @@ public class FileArgument
                     else
                     {
                         dataInputStream.readUTF();
-                        return TagTypes.getType(b).load(dataInputStream, 0, NbtAccounter.UNLIMITED);
+                        return TagTypes.getType(b).load(dataInputStream, NbtAccounter.unlimitedHeap());
                     }
                 }
                 catch (IOException secondIO)