diff --git a/bilibili_api/__init__.py b/bilibili_api/__init__.py
index 95c77e5b..dd6a25a0 100644
--- a/bilibili_api/__init__.py
+++ b/bilibili_api/__init__.py
@@ -83,7 +83,7 @@
 from .utils.short import get_real_url
 from .utils.sync import sync
 
-BILIBILI_API_VERSION = "15.5.1"
+BILIBILI_API_VERSION = "15.5.1.b0"
 
 # 如果系统为 Windows，则修改默认策略，以解决代理报错问题
 if "windows" in platform.system().lower():
diff --git a/setup.py b/setup.py
index 3dda8ac3..6f7b5eb8 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
 setuptools.setup(
     name="bilibili-api-python",
-    version="15.5.1",
+    version="15.5.1.b0",
     license="GPLv3+",
     author="Nemo2011",
     author_email="yimoxia@outlook.com",