diff --git a/.ci/flake8.sh b/.ci/ruff.sh
similarity index 71%
rename from .ci/flake8.sh
rename to .ci/ruff.sh
index 0e0cae211..12cbbc1b0 100755
--- a/.ci/flake8.sh
+++ b/.ci/ruff.sh
@@ -4,11 +4,11 @@
 
 if [ "$(id -u)" = 0 ]; then
 	set -x
-	apk -q add py3-flake8
+	apk -q add ruff
 	exec su "${TESTUSER:-build}" -c "sh -e $0"
 fi
 
 set -x
 
 # shellcheck disable=SC2046
-flake8 --ignore E501,F401,E722,W504,W605 $(find .ci -name '*.py')
+ruff --ignore E501,F401,E722,W605 $(find .ci -name '*.py')
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 807574641..13ecdddb0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -36,7 +36,7 @@ wiki:
     - .ci/wiki.sh
 
 # testcases linting
-flake8:
+ruff:
   stage: lint
   <<: *only-default
   only:
@@ -46,10 +46,11 @@ flake8:
       - .ci/*
       - .ci/*/*
   before_script:
-    - apk -q add py-flake8
+    - "echo 'https://dl-cdn.alpinelinux.org/alpine/edge/testing' >> /etc/apk/repositories"
+    - apk -q add ruff
   script:
     - .ci/lib/gitlab_prepare_ci.sh
-    - .ci/flake8.sh
+    - .ci/ruff.sh
 
 # shellcheck and various grep checks
 shellcheck-grep: