diff --git a/src/main/java/game/Encoder.java b/src/main/java/game/Encoder.java
index 6463b23..58dc63f 100644
--- a/src/main/java/game/Encoder.java
+++ b/src/main/java/game/Encoder.java
@@ -3,10 +3,6 @@
 import java.util.Arrays;
 import java.util.Optional;
 import java.util.OptionalInt;
-import java.util.regex.Pattern;
-import java.util.regex.Matcher;
-
-import java.nio.ByteBuffer;
 
 import org.lichess.compression.BitReader;
 import org.lichess.compression.BitWriter;
diff --git a/src/main/java/game/OpeningTrie.java b/src/main/java/game/OpeningTrie.java
index 62af5ec..63f09d8 100644
--- a/src/main/java/game/OpeningTrie.java
+++ b/src/main/java/game/OpeningTrie.java
@@ -6,7 +6,11 @@
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.util.*;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
 
 public class OpeningTrie {
     private final int bitVectorLength;