diff --git a/library/src/test/java/bio/terra/pfb/utils/CompareOutputUtils.java b/library/src/test/java/bio/terra/pfb/utils/CompareOutputUtils.java
index 1e5262cd..0c0cb695 100644
--- a/library/src/test/java/bio/terra/pfb/utils/CompareOutputUtils.java
+++ b/library/src/test/java/bio/terra/pfb/utils/CompareOutputUtils.java
@@ -13,11 +13,8 @@
 import java.nio.file.Paths;
 import java.util.List;
 import org.skyscreamer.jsonassert.JSONAssert;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 public class CompareOutputUtils {
-  private static final Logger logger = LoggerFactory.getLogger(CompareOutputUtils.class);
 
   public static void assertJavaPfbIsPyPFB(
       String fileName, PfbCommandType commandType, String filePath, FileExtension fileExtension)