diff --git a/setup.py b/setup.py
index 8e5e8bec..e4e3b99d 100755
--- a/setup.py
+++ b/setup.py
@@ -15,8 +15,9 @@ from pywb import __version__
 root_dir = pathlib.Path(__file__).parent
 
 
-WABAC_SW_URL = "https://cdn.jsdelivr.net/npm/@webrecorder/wabac@2.21.4/dist/sw.js"
-
+#WABAC_SW_URL = "https://cdn.jsdelivr.net/npm/@webrecorder/wabac@2.21.4/dist/sw.js"
+# for testing only, remove before merge
+WABAC_SW_URL = "https://raw.githubusercontent.com/webrecorder/wabac.js/refs/heads/baseUrlAppendReplayOption/dist/sw.js"
 
 def download_wabac_sw():
     print(f"Downloading {WABAC_SW_URL}")