diff --git a/web/app/components/rag-pipeline/hooks/use-DSL.ts b/web/app/components/rag-pipeline/hooks/use-DSL.ts
index f0c6782c5e..d4cfebd5b0 100644
--- a/web/app/components/rag-pipeline/hooks/use-DSL.ts
+++ b/web/app/components/rag-pipeline/hooks/use-DSL.ts
@@ -39,9 +39,11 @@ export const useDSL = () => {
       })
       const a = document.createElement('a')
       const file = new Blob([data], { type: 'application/yaml' })
-      a.href = URL.createObjectURL(file)
+      const url = URL.createObjectURL(file)
+      a.href = url
       a.download = `${knowledgeName}.pipeline`
       a.click()
+      URL.revokeObjectURL(url)
     }
     catch {
       notify({ type: 'error', message: t('app.exportFailed') })
diff --git a/web/app/components/workflow-app/hooks/use-DSL.ts b/web/app/components/workflow-app/hooks/use-DSL.ts
index 1fedfc8bed..6787c06198 100644
--- a/web/app/components/workflow-app/hooks/use-DSL.ts
+++ b/web/app/components/workflow-app/hooks/use-DSL.ts
@@ -39,9 +39,11 @@ export const useDSL = () => {
       })
       const a = document.createElement('a')
       const file = new Blob([data], { type: 'application/yaml' })
-      a.href = URL.createObjectURL(file)
+      const url = URL.createObjectURL(file)
+      a.href = url
       a.download = `${appDetail.name}.yml`
       a.click()
+      URL.revokeObjectURL(url)
     }
     catch {
       notify({ type: 'error', message: t('app.exportFailed') })