diff --git a/processing/src/test/java/org/apache/druid/segment/virtual/ExpressionVectorSelectorsTest.java b/processing/src/test/java/org/apache/druid/segment/virtual/ExpressionVectorSelectorsTest.java
index e940e68fc12..e0295eb6fb2 100644
--- a/processing/src/test/java/org/apache/druid/segment/virtual/ExpressionVectorSelectorsTest.java
+++ b/processing/src/test/java/org/apache/druid/segment/virtual/ExpressionVectorSelectorsTest.java
@@ -95,7 +95,7 @@ public class ExpressionVectorSelectorsTest
       "concat(string1, nonexistent)"
   );
 
-  private static final int ROWS_PER_SEGMENT = 100_000;
+  private static final int ROWS_PER_SEGMENT = 10_000;
 
   private static QueryableIndex INDEX;
   private static Closer CLOSER;
diff --git a/sql/src/test/java/org/apache/druid/sql/calcite/SqlVectorizedExpressionSanityTest.java b/sql/src/test/java/org/apache/druid/sql/calcite/SqlVectorizedExpressionSanityTest.java
index 2339cdd29bb..4dcfc182187 100644
--- a/sql/src/test/java/org/apache/druid/sql/calcite/SqlVectorizedExpressionSanityTest.java
+++ b/sql/src/test/java/org/apache/druid/sql/calcite/SqlVectorizedExpressionSanityTest.java
@@ -93,7 +93,7 @@ public class SqlVectorizedExpressionSanityTest extends InitializedNullHandlingTe
       "SELECT long5 IS NULL, long3 IS NOT NULL, count(*) FROM foo GROUP BY 1,2 ORDER BY 3"
   );
 
-  private static final int ROWS_PER_SEGMENT = 100_000;
+  private static final int ROWS_PER_SEGMENT = 10_000;
 
   private static QueryableIndex INDEX;
   private static Closer CLOSER;