diff --git a/build.include b/build.include
index 0b1ad841f..2d4d54a4b 100644
--- a/build.include
+++ b/build.include
@@ -14,7 +14,7 @@ IMAGE_TAG="next"
 THEIA_GITHUB_REPO="eclipse-theia/theia"
 THEIA_VERSION="master"
 THEIA_BRANCH="master"
-THEIA_COMMIT_SHA=
+THEIA_COMMIT_SHA="9f4f56e388109178dbfed244522bbe49ba474c31"
 THEIA_GIT_REFS="refs\\/heads\\/master"
 THEIA_DOCKER_IMAGE_VERSION=