diff --git a/lyrebird/mitm/proxy_server.py b/lyrebird/mitm/proxy_server.py
index 80a362fb8..fc526d0a6 100644
--- a/lyrebird/mitm/proxy_server.py
+++ b/lyrebird/mitm/proxy_server.py
@@ -81,7 +81,7 @@ def start_mitmdump(self, queue, config, logger, mitmdump_path):
         mitmenv['PROXY_PORT'] = str(mock_port)
         mitmenv['PROXY_FILTERS'] = json.dumps(config.get('proxy.filters', []))
         logger.info('HTTP proxy server starting...')
-        subprocess.Popen(f'{str(mitmdump_path)} {" ".join(mitm_arguments)}', shell=True, env=mitmenv)
+        subprocess.Popen([str(mitmdump_path)]+mitm_arguments, env=mitmenv)
         is_mitm_start = self.wait_for_mitm_start(config, logger)
         if is_mitm_start:
             self.publish_init_status(queue, 'READY')
diff --git a/lyrebird/version.py b/lyrebird/version.py
index 899c32dc4..7b9fc6c62 100644
--- a/lyrebird/version.py
+++ b/lyrebird/version.py
@@ -1,3 +1,3 @@
-IVERSION = (2, 26, 0)
+IVERSION = (2, 26, 1)
 VERSION = ".".join(str(i) for i in IVERSION)
 LYREBIRD = "Lyrebird " + VERSION