diff --git a/fabric-biome-api-v1/src/main/java/net/fabricmc/fabric/impl/biome/modification/BiomeModificationImpl.java b/fabric-biome-api-v1/src/main/java/net/fabricmc/fabric/impl/biome/modification/BiomeModificationImpl.java
index e58f729e1..e1eb4fce2 100644
--- a/fabric-biome-api-v1/src/main/java/net/fabricmc/fabric/impl/biome/modification/BiomeModificationImpl.java
+++ b/fabric-biome-api-v1/src/main/java/net/fabricmc/fabric/impl/biome/modification/BiomeModificationImpl.java
@@ -35,7 +35,6 @@ import org.jetbrains.annotations.TestOnly;
 
 import net.minecraft.util.Identifier;
 import net.minecraft.util.registry.DynamicRegistryManager;
-import net.minecraft.util.registry.MutableRegistry;
 import net.minecraft.util.registry.Registry;
 import net.minecraft.util.registry.RegistryKey;
 import net.minecraft.world.biome.Biome;
diff --git a/fabric-registry-sync-v0/src/testmod/java/net/fabricmc/fabric/test/registry/sync/RegistrySyncTest.java b/fabric-registry-sync-v0/src/testmod/java/net/fabricmc/fabric/test/registry/sync/RegistrySyncTest.java
index 4d0038c3c..c1db62f31 100644
--- a/fabric-registry-sync-v0/src/testmod/java/net/fabricmc/fabric/test/registry/sync/RegistrySyncTest.java
+++ b/fabric-registry-sync-v0/src/testmod/java/net/fabricmc/fabric/test/registry/sync/RegistrySyncTest.java
@@ -26,7 +26,6 @@ import net.minecraft.item.Item;
 import net.minecraft.util.Identifier;
 import net.minecraft.util.registry.BuiltinRegistries;
 import net.minecraft.util.registry.DynamicRegistryManager;
-import net.minecraft.util.registry.MutableRegistry;
 import net.minecraft.util.registry.Registry;
 import net.minecraft.util.registry.SimpleRegistry;
 import net.minecraft.world.gen.feature.ConfiguredFeature;