diff --git a/server/src/main/java/org/opensearch/index/mapper/FieldTypeInference.java b/server/src/main/java/org/opensearch/index/mapper/FieldTypeInference.java
index f649e3c1ca251..e0cacca3e0e53 100644
--- a/server/src/main/java/org/opensearch/index/mapper/FieldTypeInference.java
+++ b/server/src/main/java/org/opensearch/index/mapper/FieldTypeInference.java
@@ -10,6 +10,7 @@
 
 import org.apache.lucene.index.IndexReader;
 import org.apache.lucene.index.LeafReaderContext;
+import org.opensearch.common.Randomness;
 import org.opensearch.common.xcontent.XContentFactory;
 import org.opensearch.common.xcontent.json.JsonXContent;
 import org.opensearch.core.common.bytes.BytesReference;
@@ -156,7 +157,7 @@ private void setNextLeaf() {
 
         private static int[] getSortedRandomNum(int sampleSize, int upperBound, int attempts) {
             Set<Integer> generatedNumbers = new HashSet<>();
-            Random random = new Random();
+            Random random = Randomness.get();
             int itr = 0;
             while (generatedNumbers.size() < sampleSize && itr++ < attempts) {
                 int randomNumber = random.nextInt(upperBound);