diff --git a/autoroll/config/libunwind-chromium.cfg b/autoroll/config/libunwind-chromium.cfg
index a9f9e3c..f8c9d96 100644
--- a/autoroll/config/libunwind-chromium.cfg
+++ b/autoroll/config/libunwind-chromium.cfg
@@ -53,7 +53,7 @@
   }
   gitiles_child:  {
     gitiles:  {
-      branch:  "master"
+      branch:  "main"
       repo_url:  "https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind.git"
     }
   }