diff --git a/packages/greenboard/ci-run-tests.sh b/packages/greenboard/ci-run-tests.sh
index d51d0ea82..fb601cf7b 100755
--- a/packages/greenboard/ci-run-tests.sh
+++ b/packages/greenboard/ci-run-tests.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 YARN_OP_FLAGS="--ignore-engines"
-YARN_BUILD_FLAGS="$YARN_OP_FLAGS --unsafe-perm --build-from-source"
+YARN_BUILD_FLAGS="$YARN_OP_FLAGS --build-from-source"
 alias yarn_install_command="yarn $YARN_BUILD_FLAGS"
 alias yarn_ci_command="yarn $YARN_OP_FLAGS --frozen-lockfile"
 alias yarn_build_command="yarn $YARN_OP_FLAGS build"
diff --git a/packages/greenboard/environment.dockerfile b/packages/greenboard/environment.dockerfile
index bb45c9230..5c5e61886 100644
--- a/packages/greenboard/environment.dockerfile
+++ b/packages/greenboard/environment.dockerfile
@@ -29,4 +29,4 @@ RUN \
   # Install specified versions of `yarn`.
   npm i -g yarn@${yarn_version};
 
-USER nobody
+USER node