diff --git a/src/renderer/pages/PicGoSetting.vue b/src/renderer/pages/PicGoSetting.vue
index 7cc3afb..b1112e0 100644
--- a/src/renderer/pages/PicGoSetting.vue
+++ b/src/renderer/pages/PicGoSetting.vue
@@ -1725,7 +1725,7 @@ function handleSaveConfig () {
     return imageExtList.includes(item[0]) && availableFormat.includes(item[1])
   })
   const formatConvertObjFilter = Object.fromEntries(formatConvertObjEntriesFilter)
-  compressForm.formatConvertObj = formatConvertObjFilter
+  compressForm.formatConvertObj = JSON.stringify(formatConvertObjFilter)
   saveConfig('buildIn.compress', toRaw(compressForm))
   saveConfig('buildIn.watermark', toRaw(waterMarkForm))
   closeDialog()
diff --git a/src/renderer/pages/Upload.vue b/src/renderer/pages/Upload.vue
index d05d3b3..4d968da 100644
--- a/src/renderer/pages/Upload.vue
+++ b/src/renderer/pages/Upload.vue
@@ -535,7 +535,7 @@ function handleSaveConfig () {
     return imageExtList.includes(item[0]) && availableFormat.includes(item[1])
   })
   const formatConvertObjFilter = Object.fromEntries(formatConvertObjEntriesFilter)
-  compressForm.formatConvertObj = formatConvertObjFilter
+  compressForm.formatConvertObj = JSON.stringify(formatConvertObjFilter)
   saveConfig('buildIn.compress', toRaw(compressForm))
   saveConfig('buildIn.watermark', toRaw(waterMarkForm))
   closeDialog()