diff --git a/lib/bb/tests/fetch.py b/lib/bb/tests/fetch.py
index f0d417a50d..eff12b7c50 100644
--- a/lib/bb/tests/fetch.py
+++ b/lib/bb/tests/fetch.py
@@ -1110,7 +1110,7 @@ class FetcherNetworkTest(FetcherTest):
         """ Prevent regression on deeply nested submodules not being checked out properly, even though they were fetched. """
 
         # This repository also has submodules where the module (name), path and url do not align
-        url = "gitsm://github.com/azure/iotedge.git;protocol=https;rev=d76e0316c6f324345d77c48a83ce836d09392699;branch=master"
+        url = "gitsm://github.com/azure/iotedge.git;protocol=https;rev=d76e0316c6f324345d77c48a83ce836d09392699;branch=main"
         fetcher = bb.fetch.Fetch([url], self.d)
         fetcher.download()
         # Previous cwd has been deleted