diff --git a/extensions-core/histogram/src/main/java/org/apache/druid/query/aggregation/histogram/FixedBucketsHistogramAggregator.java b/extensions-core/histogram/src/main/java/org/apache/druid/query/aggregation/histogram/FixedBucketsHistogramAggregator.java
index 3611b5862d7e..2f5b56508933 100644
--- a/extensions-core/histogram/src/main/java/org/apache/druid/query/aggregation/histogram/FixedBucketsHistogramAggregator.java
+++ b/extensions-core/histogram/src/main/java/org/apache/druid/query/aggregation/histogram/FixedBucketsHistogramAggregator.java
@@ -22,7 +22,6 @@
 import com.google.common.primitives.Longs;
 import org.apache.druid.common.config.NullHandling;
 import org.apache.druid.java.util.common.ISE;
-import org.apache.druid.java.util.common.logger.Logger;
 import org.apache.druid.query.aggregation.Aggregator;
 import org.apache.druid.segment.BaseObjectColumnValueSelector;
 
@@ -31,8 +30,6 @@
 
 public class FixedBucketsHistogramAggregator implements Aggregator
 {
-  private static final Logger LOG = new Logger(FixedBucketsHistogramAggregator.class);
-
   public static final String TYPE_NAME = "fixedBucketsHistogram";
 
   public static final Comparator COMPARATOR = new Comparator()
@@ -77,7 +74,6 @@ public void aggregate()
         histogram.incrementMissing();
       }
     } else if (val instanceof String) {
-      LOG.info((String) val);
       histogram.combineHistogram(FixedBucketsHistogram.fromBase64((String) val));
     } else if (val instanceof FixedBucketsHistogram) {
       histogram.combineHistogram((FixedBucketsHistogram) val);
diff --git a/extensions-core/histogram/src/main/java/org/apache/druid/query/aggregation/histogram/FixedBucketsHistogramSerde.java b/extensions-core/histogram/src/main/java/org/apache/druid/query/aggregation/histogram/FixedBucketsHistogramSerde.java
index 0f7f74313ee5..9b9a1b7612d2 100644
--- a/extensions-core/histogram/src/main/java/org/apache/druid/query/aggregation/histogram/FixedBucketsHistogramSerde.java
+++ b/extensions-core/histogram/src/main/java/org/apache/druid/query/aggregation/histogram/FixedBucketsHistogramSerde.java
@@ -23,7 +23,6 @@
 import org.apache.druid.common.config.NullHandling;
 import org.apache.druid.data.input.InputRow;
 import org.apache.druid.data.input.Rows;
-import org.apache.druid.java.util.common.logger.Logger;
 import org.apache.druid.java.util.common.parsers.ParseException;
 import org.apache.druid.query.aggregation.AggregatorFactory;
 import org.apache.druid.segment.GenericColumnSerializer;
@@ -41,8 +40,6 @@
 
 public class FixedBucketsHistogramSerde extends ComplexMetricSerde
 {
-  private static final Logger LOG = new Logger(FixedBucketsHistogramSerde.class);
-
   private static Ordering<FixedBucketsHistogram> comparator = new Ordering<FixedBucketsHistogram>()
   {
     @Override