diff --git a/src-tauri/src/services/reconcile_service.rs b/src-tauri/src/services/reconcile_service.rs
index a60044d..06c5d71 100644
--- a/src-tauri/src/services/reconcile_service.rs
+++ b/src-tauri/src/services/reconcile_service.rs
@@ -100,8 +100,8 @@ pub fn build_update_candidates(
                 icon_url: update.icon_url.clone().or_else(|| definition.and_then(|item| item.icon_url.clone())),
                 use_manifest: definition.map(|item| item.use_manifest).unwrap_or(false),
                 manifest_url: definition.and_then(|item| item.manifest_url.clone()),
-                post_install: definition.and_then(|item| item.post_install.clone()),
-                post_install_url: definition.and_then(|item| item.post_install_url.clone()),
+                post_install: None,
+                post_install_url: None,
                 action_label: "更新".to_string(),
                 target_version: update.available_version.clone(),
             }
diff --git a/src/store/taskRuntime.ts b/src/store/taskRuntime.ts
index 5c66fc1..6514457 100644
--- a/src/store/taskRuntime.ts
+++ b/src/store/taskRuntime.ts
@@ -56,10 +56,11 @@ export const useTaskRuntimeStore = defineStore('task-runtime', {
 
     async install(id: string, targetVersion?: string) {
       const catalog = useCatalogStore()
-      const software = catalog.findSoftware(id)
+      const updateSoftware = catalog.updates.find(item => item.id.toLowerCase() === id.toLowerCase())
+      const software = updateSoftware ?? catalog.findSoftware(id)
       if (!software) return
 
-      const enablePostInstall = this.postInstallPrefs[id] !== false
+      const enablePostInstall = updateSoftware ? false : this.postInstallPrefs[id] !== false
       try {
         await invoke('install_software', {
           task: {