diff --git a/build.include b/build.include
index bd615b439..be584129b 100644
--- a/build.include
+++ b/build.include
@@ -13,7 +13,7 @@ set -u
 IMAGE_TAG="next"
 THEIA_GITHUB_REPO="eclipse-theia/theia"
 THEIA_VERSION="master"
-THEIA_BRANCH="master"
+THEIA_BRANCH="test"
 THEIA_COMMIT_SHA=
 THEIA_GIT_REFS="refs\\/heads\\/master"
 THEIA_DOCKER_IMAGE_VERSION=