diff --git a/.github/scripts/ciutil b/.github/scripts/ciutil
index 679f733..c02a254 100755
--- a/.github/scripts/ciutil
+++ b/.github/scripts/ciutil
@@ -43,7 +43,7 @@ preinstall-binaries() {
   local dir=$PWD
 
   # https://medium.com/opsops/speeding-up-ci-cd-on-dpkg-based-systems-ae5af774c557
-  echo 'force-unsafe-io' >> /etc/dpkg/dpkg.cfg
+  echo 'force-unsafe-io' | sudo tee -a /etc/dpkg/dpkg.cfg > /dev/null
 
   # Testing:
   # sudo rm -rf /var/lib/apt/archives/*