diff --git a/core/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java b/core/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java
index 4ce84bf874..7f8ef40219 100644
--- a/core/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java
+++ b/core/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java
@@ -3144,7 +3144,7 @@ public void printParameter(Object param) {
         }
 
         if (param instanceof Double) {
-            param = new BigDecimal((double) param);
+            param = BigDecimal.valueOf((double) param);
         }
         if (param instanceof BigDecimal) { // 不需要科学计数法输出
             print0(((BigDecimal) param).toPlainString());
diff --git a/core/src/main/java/com/alibaba/druid/sql/visitor/SQLEvalVisitorUtils.java b/core/src/main/java/com/alibaba/druid/sql/visitor/SQLEvalVisitorUtils.java
index bcadfdbbbb..6bfa0e9e03 100644
--- a/core/src/main/java/com/alibaba/druid/sql/visitor/SQLEvalVisitorUtils.java
+++ b/core/src/main/java/com/alibaba/druid/sql/visitor/SQLEvalVisitorUtils.java
@@ -1515,11 +1515,11 @@ public static BigDecimal castToDecimal(Object val) {
         }
 
         if (val instanceof Float) {
-            return new BigDecimal((Float) val);
+            return BigDecimal.valueOf((Float) val);
         }
 
         if (val instanceof Double) {
-            return new BigDecimal((Double) val);
+            return BigDecimal.valueOf((Double) val);
         }
 
         return BigDecimal.valueOf(((Number) val).longValue());