diff --git a/src/main/java/it/cavallium/dbengine/lucene/LuceneUtils.java b/src/main/java/it/cavallium/dbengine/lucene/LuceneUtils.java
index 388a61d..4543658 100644
--- a/src/main/java/it/cavallium/dbengine/lucene/LuceneUtils.java
+++ b/src/main/java/it/cavallium/dbengine/lucene/LuceneUtils.java
@@ -32,7 +32,6 @@ import org.apache.lucene.analysis.miscellaneous.ASCIIFoldingFilter;
 import org.apache.lucene.analysis.standard.StandardAnalyzer;
 import org.apache.lucene.document.Document;
 import org.apache.lucene.index.IndexableField;
-import org.apache.lucene.misc.SweetSpotSimilarity;
 import org.apache.lucene.search.IndexSearcher;
 import org.apache.lucene.search.similarities.BooleanSimilarity;
 import org.apache.lucene.search.similarities.ClassicSimilarity;
@@ -73,7 +72,6 @@ public class LuceneUtils {
 	private static final Similarity luceneBM11PlusNGramSimilarityInstance = NGramSimilarity.bm11(BM25Model.PLUS);
 	private static final Similarity luceneClassicSimilarityInstance = new ClassicSimilarity();
 	private static final Similarity luceneClassicNGramSimilarityInstance = NGramSimilarity.classic();
-	private static final Similarity luceneSweetSpotSimilarityInstance = new SweetSpotSimilarity();
 	private static final Similarity luceneLTCSimilarityInstance = new LtcSimilarity();
 	private static final Similarity luceneLDPSimilarityInstance = new LdpSimilarity();
 	private static final Similarity luceneLDPNoLengthSimilarityInstance = new LdpSimilarity(0, 0.5f);
@@ -139,8 +137,6 @@ public class LuceneUtils {
 				return luceneBM11PlusSimilarityInstance;
 			case NGramBM11Plus:
 				return luceneBM11PlusNGramSimilarityInstance;
-			case SweetSpot:
-				return luceneSweetSpotSimilarityInstance;
 			case LTC:
 				return luceneLTCSimilarityInstance;
 			case LDP:
diff --git a/src/main/java/it/cavallium/dbengine/lucene/analyzer/TextFieldsSimilarity.java b/src/main/java/it/cavallium/dbengine/lucene/analyzer/TextFieldsSimilarity.java
index 80b3a17..69add1c 100644
--- a/src/main/java/it/cavallium/dbengine/lucene/analyzer/TextFieldsSimilarity.java
+++ b/src/main/java/it/cavallium/dbengine/lucene/analyzer/TextFieldsSimilarity.java
@@ -13,7 +13,6 @@ public enum TextFieldsSimilarity {
 	NGramBM11Plus,
 	Classic,
 	NGramClassic,
-	SweetSpot,
 	LTC,
 	LDP,
 	LDPNoLength,
diff --git a/src/test/java/it/cavallium/dbengine/OldDatabaseTests.java b/src/test/java/it/cavallium/dbengine/OldDatabaseTests.java
index 83d97bb..36125ca 100644
--- a/src/test/java/it/cavallium/dbengine/OldDatabaseTests.java
+++ b/src/test/java/it/cavallium/dbengine/OldDatabaseTests.java
@@ -29,7 +29,6 @@ import java.util.concurrent.CompletionException;
 import java.util.stream.Collectors;
 import org.jetbrains.annotations.NotNull;
 import org.junit.jupiter.api.Test;
-import org.restlet.engine.util.Pool;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 import reactor.core.scheduler.Schedulers;