diff --git a/.changes/nsis-sign-plugins.md b/.changes/nsis-sign-plugins.md
new file mode 100644
index 000000000000..1109dd6ab3c5
--- /dev/null
+++ b/.changes/nsis-sign-plugins.md
@@ -0,0 +1,5 @@
+---
+'tauri-bundler': 'patch:enhance'
+---
+
+Sign nsis plugin files when bundling
\ No newline at end of file
diff --git a/crates/tauri-bundler/src/bundle/windows/nsis/mod.rs b/crates/tauri-bundler/src/bundle/windows/nsis/mod.rs
index 810141214c5c..52db13ad781c 100644
--- a/crates/tauri-bundler/src/bundle/windows/nsis/mod.rs
+++ b/crates/tauri-bundler/src/bundle/windows/nsis/mod.rs
@@ -51,6 +51,13 @@ const NSIS_REQUIRED_FILES: &[&str] = &[
   "Include/nsDialogs.nsh",
   "Include/WinMessages.nsh",
 ];
+const NSIS_PLUGIN_FILES: &[&str] = &[
+  "NSISdl.dll",
+  "StartMenu.dll",
+  "System.dll",
+  "nsDialogs.dll",
+  "nsis_tauri_utils.dll",
+];
 #[cfg(not(target_os = "windows"))]
 const NSIS_REQUIRED_FILES: &[&str] = &["Plugins/x86-unicode/nsis_tauri_utils.dll"];
 
@@ -517,6 +524,14 @@ fn build_nsis_app_installer(
   ));
   fs::create_dir_all(nsis_installer_path.parent().unwrap())?;
 
+  if settings.can_sign() {
+    log::info!("Signing NSIS plugins");
+    for dll in NSIS_PLUGIN_FILES {
+      let path = _nsis_toolset_path.join("Plugins/x86-unicode").join(dll);
+      try_sign(&path, settings)?;
+    }
+  }
+
   log::info!(action = "Running"; "makensis.exe to produce {}", display_path(&nsis_installer_path));
 
   #[cfg(target_os = "windows")]