diff --git a/solr/core/src/java/org/apache/solr/handler/StreamHandler.java b/solr/core/src/java/org/apache/solr/handler/StreamHandler.java
index 5396acd9f04..e1203aa58e6 100644
--- a/solr/core/src/java/org/apache/solr/handler/StreamHandler.java
+++ b/solr/core/src/java/org/apache/solr/handler/StreamHandler.java
@@ -29,7 +29,6 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 
-import org.apache.commons.math3.distribution.PoissonDistribution;
 import org.apache.solr.client.solrj.io.ModelCache;
 import org.apache.solr.client.solrj.io.SolrClientCache;
 import org.apache.solr.client.solrj.io.Tuple;
diff --git a/solr/licenses/commons-math3-3.4.1.jar.sha1 b/solr/licenses/commons-math3-3.4.1.jar.sha1
deleted file mode 100644
index a26859d3531..00000000000
--- a/solr/licenses/commons-math3-3.4.1.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-3ac44a8664228384bc68437264cf7c4cf112f579
diff --git a/solr/licenses/commons-math3-3.6.1.jar.sha1 b/solr/licenses/commons-math3-3.6.1.jar.sha1
new file mode 100644
index 00000000000..72975be4c88
--- /dev/null
+++ b/solr/licenses/commons-math3-3.6.1.jar.sha1
@@ -0,0 +1 @@
+e4ba98f1d4b3c80ec46392f25e094a6a2e58fcbf
\ No newline at end of file
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/io/eval/FrequencyTableEvaluator.java b/solr/solrj/src/java/org/apache/solr/client/solrj/io/eval/FrequencyTableEvaluator.java
index ae65dc1e33d..b648e3f5493 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/io/eval/FrequencyTableEvaluator.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/io/eval/FrequencyTableEvaluator.java
@@ -25,10 +25,8 @@ import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 
-import org.apache.commons.math3.random.EmpiricalDistribution;
 import org.apache.commons.math3.stat.Frequency;
 
-import org.apache.commons.math3.stat.descriptive.SummaryStatistics;
 import org.apache.solr.client.solrj.io.Tuple;
 import org.apache.solr.client.solrj.io.stream.expr.StreamExpression;
 import org.apache.solr.client.solrj.io.stream.expr.StreamFactory;