diff --git a/systemd/britney.service b/systemd/britney.service
index 07bcfdb..529cd3b 100644
--- a/systemd/britney.service
+++ b/systemd/britney.service
@@ -7,5 +7,6 @@ After=network.target nginx.service
 Type=simple
 User=lugito
 Group=lugito
+Nice=16
 WorkingDirectory=/srv/lubuntu-ci/repos/ci-tools
 ExecStart=/srv/lubuntu-ci/repos/ci-tools/fetch-indexes -c /srv/lubuntu-ci/repos/ci-tools/configs/fetch-indexes.yaml
diff --git a/systemd/lintian.service b/systemd/lintian.service
index 7a5ddea..be0ad60 100644
--- a/systemd/lintian.service
+++ b/systemd/lintian.service
@@ -7,4 +7,5 @@ After=network.target nginx.service
 Type=simple
 User=lugito
 Group=lugito
+Nice=17
 ExecStart=/srv/lubuntu-ci/repos/ci-tools/lintian-ppa -u lubuntu-ci -p unstable-ci-proposed
diff --git a/systemd/pull-tooling.service b/systemd/pull-tooling.service
index 82050b7..1b142be 100644
--- a/systemd/pull-tooling.service
+++ b/systemd/pull-tooling.service
@@ -7,5 +7,6 @@ After=network.target
 Type=simple
 User=lugito
 Group=lugito
+Nice=18
 WorkingDirectory=/srv/lubuntu-ci/repos/ci-tools/
 ExecStart=/srv/lubuntu-ci/repos/ci-tools/pull-and-compile-tooling