diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/ArithmeticExpressionSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/ArithmeticExpressionSuite.scala
index 021217606dc03..9a752af523ffc 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/ArithmeticExpressionSuite.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/ArithmeticExpressionSuite.scala
@@ -349,7 +349,7 @@ class ArithmeticExpressionSuite extends SparkFunSuite with ExpressionEvalHelper
   }
 
   test("SPARK-22499: Least and greatest should not generate codes beyond 64KB") {
-    val N = 3000
+    val N = 2000
     val strings = (1 to N).map(x => "s" * x)
     val inputsExpr = strings.map(Literal.create(_, StringType))