diff --git a/gradle.properties b/gradle.properties
index f01ba723..a3e0003f 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -4,12 +4,12 @@ org.gradle.jvmargs=-Xmx1G
 # Fabric Properties
 	# check these on https://fabricmc.net/use
     # or better: https://modmuss50.me/fabric.html
-	minecraft_version=1.19-pre2
+	minecraft_version=1.19-pre5
 	loader_version=0.14.6
 	fabric_version=0.53.3+1.19
 
 # Mod Properties
-	mod_version = 1.4.77
+	mod_version = 1.4.78
 	maven_group = carpet
 	archives_base_name = fabric-carpet
 
diff --git a/src/main/java/carpet/CarpetSettings.java b/src/main/java/carpet/CarpetSettings.java
index 6741090a..c38df309 100644
--- a/src/main/java/carpet/CarpetSettings.java
+++ b/src/main/java/carpet/CarpetSettings.java
@@ -45,7 +45,7 @@ import static carpet.settings.RuleCategory.CLIENT;
 @SuppressWarnings("CanBeFinal")
 public class CarpetSettings
 {
-    public static final String carpetVersion = "1.4.77+v220523";
+    public static final String carpetVersion = "1.4.78+v220601";
     public static final Logger LOG = LoggerFactory.getLogger("carpet");
     public static ThreadLocal<Boolean> skipGenerationChecks = ThreadLocal.withInitial(() -> false);
     public static ThreadLocal<Boolean> impendingFillSkipUpdates = ThreadLocal.withInitial(() -> false);
diff --git a/src/main/java/carpet/script/api/WorldAccess.java b/src/main/java/carpet/script/api/WorldAccess.java
index abf9291e..e233f5bf 100644
--- a/src/main/java/carpet/script/api/WorldAccess.java
+++ b/src/main/java/carpet/script/api/WorldAccess.java
@@ -47,6 +47,7 @@ import net.minecraft.core.QuartPos;
 import net.minecraft.core.Registry;
 import net.minecraft.resources.ResourceKey;
 import net.minecraft.tags.TagKey;
+import net.minecraft.world.level.chunk.PalettedContainer;
 import net.minecraft.world.level.levelgen.structure.Structure;
 import net.minecraft.world.level.levelgen.structure.StructureType;
 import org.jetbrains.annotations.Nullable;
@@ -1267,7 +1268,8 @@ public class WorldAccess {
                 int j = i + QuartPos.fromBlock(chunk.getHeight()) - 1;
                 int k = Mth.clamp(biomeY, i, j);
                 int l = chunk.getSectionIndex(QuartPos.toBlock(k));
-                chunk.getSection(l).getBiomes().set(biomeX & 3, k & 3, biomeZ & 3, biome);
+                // accessing outside of the interface - might be dangerous in the future.
+                ((PalettedContainer<Holder<Biome>>) chunk.getSection(l).getBiomes()).set(biomeX & 3, k & 3, biomeZ & 3, biome);
             } catch (Throwable var8) {
                 return Value.FALSE;
             }