diff --git a/packages/core/evaluators/src/client/index.tsx b/packages/core/evaluators/src/client/index.tsx
index 6079894ebf..b2902807bb 100644
--- a/packages/core/evaluators/src/client/index.tsx
+++ b/packages/core/evaluators/src/client/index.tsx
@@ -22,8 +22,8 @@ export interface Evaluator {
 
 export const evaluators = new Registry<Evaluator>();
 
-evaluators.register('math.js', mathjs);
 evaluators.register('formula.js', formulajs);
+evaluators.register('math.js', mathjs);
 evaluators.register('string', string);
 
 export function getOptions() {
diff --git a/packages/plugins/@nocobase/plugin-workflow/src/client/nodes/calculation.tsx b/packages/plugins/@nocobase/plugin-workflow/src/client/nodes/calculation.tsx
index e083a69f43..1aec3ca660 100644
--- a/packages/plugins/@nocobase/plugin-workflow/src/client/nodes/calculation.tsx
+++ b/packages/plugins/@nocobase/plugin-workflow/src/client/nodes/calculation.tsx
@@ -32,7 +32,7 @@ export default class extends Instruction {
         options: getOptions(),
       },
       required: true,
-      default: 'math.js',
+      default: 'formula.js',
     },
     expression: {
       type: 'string',