diff --git a/.github/workflows/base-commit-message-checker.yml b/.github/workflows/base-commit-message-checker.yml
index 480b718..a34ceeb 100644
--- a/.github/workflows/base-commit-message-checker.yml
+++ b/.github/workflows/base-commit-message-checker.yml
@@ -1,6 +1,7 @@
 ---
 name: 'Commit message check'
 
+# yamllint disable-line rule:truthy
 on:
   workflow_call:
     secrets:
diff --git a/.github/workflows/commit-message-checker.yml b/.github/workflows/commit-message-checker.yml
index 9ffff1a..3d42b48 100644
--- a/.github/workflows/commit-message-checker.yml
+++ b/.github/workflows/commit-message-checker.yml
@@ -1,6 +1,7 @@
 ---
 name: 'Commit message check'
 
+# yamllint disable-line rule:truthy
 on:
   pull_request:
   push:
diff --git a/.github/workflows/perl-lint-checks.yml b/.github/workflows/perl-lint-checks.yml
index f6e3452..0a77106 100644
--- a/.github/workflows/perl-lint-checks.yml
+++ b/.github/workflows/perl-lint-checks.yml
@@ -1,6 +1,7 @@
 ---
 name: 'Perl static checks'
 
+# yamllint disable-line rule:truthy
 on:
   pull_request:
   push: