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 40955f69b3a6..2c8f4bd63eb2 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 de788fadc7b9..2152e06eed9e 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
@@ -90,7 +90,7 @@ public class SqlVectorizedExpressionSanityTest extends InitializedNullHandlingTe
       "SELECT CONCAT(string1, '-', string2, '-', long1, '-', double1, '-', float1) FROM foo GROUP BY 1"
   );
 
-  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;