diff --git a/Dockerfile b/Dockerfile
index 9654e11..4676dea 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -25,6 +25,7 @@ FROM ruby:3.3
 LABEL "repository"="https://github.com/zerocracy/pages-action"
 LABEL "maintainer"="Yegor Bugayenko"
 
+# hadolint disable=DL3008
 RUN apt-get update -y --fix-missing \
   && apt-get -y install --no-install-recommends \
     openjdk-17-jdk \
diff --git a/tests/simple.yml b/tests/simple.yml
index 21fdf58..573a5af 100644
--- a/tests/simple.yml
+++ b/tests/simple.yml
@@ -1,3 +1,24 @@
+# MIT License
+#
+# Copyright (c) 2024 Zerocracy
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
 ---
 -
   time: 2024-05-18T22:22:22.8492Z