diff --git a/pom.xml b/pom.xml
index 66bfdcb..0218097 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,7 +17,7 @@
         <kotlin.compiler.jvmTarget>1.8</kotlin.compiler.jvmTarget>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-        <minecraft.version>21w14a</minecraft.version>
+        <minecraft.version>1.15-pre3</minecraft.version>
     </properties>
 
     <repositories>
diff --git a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/BiomeGenerator.kt b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/BiomeGenerator.kt
index d0dd18a..b0fab97 100644
--- a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/BiomeGenerator.kt
+++ b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/BiomeGenerator.kt
@@ -4,6 +4,7 @@ import com.google.gson.JsonObject
 import de.bixilon.pixlyzer.generator.Generator
 import de.bixilon.pixlyzer.util.ReflectionUtil.getClass
 import de.bixilon.pixlyzer.util.ReflectionUtil.getField
+import de.bixilon.pixlyzer.util.ReflectionUtil.getGetter
 import net.minecraft.sound.SoundEvent
 import net.minecraft.util.Identifier
 import net.minecraft.util.math.BlockPos
@@ -90,6 +91,8 @@ object BiomeGenerator : Generator(
             if (!biomeData.has("sky_color")) {
                 BIOME_SKY_COLOR_FIELD?.getInt(biome)?.let {
                     biomeData.addProperty("sky_color", it)
+                } ?: let {
+                    SKY_COLOR_GETTER?.invoke(biome)
                 } ?: let {
                     biomeData.addProperty("sky_color", SKY_COLOR_FUNCTION!!.invoke(biome, 0.0f) as Int)
                 }
@@ -108,13 +111,18 @@ object BiomeGenerator : Generator(
     private val FOLIAGE_COLOR_METHOD = try {
         Biome::class.java.getMethod("getFoliageColor")
     } catch (exception: Exception) {
-        null
+        try {
+            Biome::class.java.getMethod("getFoliageColorAt")
+        } catch (exception: Exception) {
+            null
+        }
     }
     private val GRASS_COLOR_OVERRIDE_METHOD = try {
         Biome::class.java.getMethod("getGrassColorAt", BlockPos::class.java)
     } catch (exception: Exception) {
         null
     }
+    private val SKY_COLOR_GETTER = getGetter(Biome::class.java, "getSkyColor")
 
     private val SKY_COLOR_FUNCTION = try {
         Biome::class.java.getDeclaredMethod("getSkyColor", Float::class.java)
@@ -143,7 +151,7 @@ object BiomeGenerator : Generator(
     private val DOWNFALL_FIELD = getField(CLIMATE_SETTINGS_CLASS, "downfall")!!
 
 
-    private val BIOME_SKY_COLOR_FIELD = getField(Biome::class.java, "skyColor")
+    private val BIOME_SKY_COLOR_FIELD = getField(Biome::class.java, "field_21806", "skyColor")
 
 
     private val MUSIC_CLASS_EVENT_FIELD = getField(getClass("net.minecraft.sound.MusicSound"), "sound", "event")
diff --git a/src/main/resources/entities_metadata_mappings.json b/src/main/resources/entities_metadata_mappings.json
index 8f3927d..4d3349a 100644
--- a/src/main/resources/entities_metadata_mappings.json
+++ b/src/main/resources/entities_metadata_mappings.json
@@ -161,6 +161,7 @@
       "ABSORPTION_AMOUNT": "PLAYER_ABSORPTION_HEARTS",
       "SCORE": "PLAYER_SCORE",
       "PLAYER_MODEL_PARTS": "PLAYER_SKIN_PARTS_FLAGS",
+      "PLAYER_MODEL_BIT_MASK": "PLAYER_SKIN_PARTS_FLAGS",
       "MAIN_ARM": "PLAYER_SKIN_MAIN_HAND",
       "LEFT_SHOULDER_ENTITY": "PLAYER_LEFT_SHOULDER_DATA",
       "RIGHT_SHOULDER_ENTITY": "PLAYER_RIGHT_SHOULDER_DATA"