diff --git a/document/travis-deploy.sh b/document/travis-deploy.sh
index 832d025b..fbb58997 100755
--- a/document/travis-deploy.sh
+++ b/document/travis-deploy.sh
@@ -4,7 +4,7 @@
 
 set -e # Exit with nonzero exit code if anything fails
 
-SOURCE_BRANCH="master"
+SOURCE_BRANCH="main"
 TARGET_BRANCH="gh-pages"
 
 function doCompile {