diff --git a/.github/workflows/license.yml b/.github/workflows/license.yml
index bc7709b9b..479333ec2 100644
--- a/.github/workflows/license.yml
+++ b/.github/workflows/license.yml
@@ -54,4 +54,3 @@ jobs:
           if [ "${failed}" == "true" ]; then
             exit 1
           fi
-
diff --git a/.github/workflows/mvn.yml b/.github/workflows/mvn.yml
index 3c11aa6f8..854bc6f86 100644
--- a/.github/workflows/mvn.yml
+++ b/.github/workflows/mvn.yml
@@ -44,7 +44,7 @@ jobs:
     env:
       CONVERT_PATH: /tmp/antlr4-to-bnf-converter
     steps:
-      - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
diff --git a/.markdownlint.yml b/.markdownlint.yml
index f2a8a2bcd..a528eb7d5 100644
--- a/.markdownlint.yml
+++ b/.markdownlint.yml
@@ -1,3 +1,24 @@
+# The MIT License (MIT)
+#
+# Copyright (c) 2016-2024 Objectionary.com
+#
+# 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 NON-INFRINGEMENT. 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.
 ---
 # Default state for all rules
 default: true