diff --git a/.github/workflows/build-and-push-docker-image.yml b/.github/workflows/build-and-push-docker-image.yml
index e03bf3d..2f8bd17 100644
--- a/.github/workflows/build-and-push-docker-image.yml
+++ b/.github/workflows/build-and-push-docker-image.yml
@@ -2,10 +2,12 @@
 
 name: 🏗️
 
-on:   # yamllint disable-line rule:truthy
+on:
   pull_request:
   push:
-    branches: ["release/*", "unstable/*"]
+    branches:
+    - release/*
+    - unstable/*
   workflow_dispatch:
     inputs:
       tag:
diff --git a/.github/workflows/reusable-smoke-test.yml b/.github/workflows/reusable-smoke-test.yml
index 2f1ef51..0aa4ec9 100644
--- a/.github/workflows/reusable-smoke-test.yml
+++ b/.github/workflows/reusable-smoke-test.yml
@@ -2,7 +2,7 @@
 
 name: ♻️ 🧪
 
-on:   # yamllint disable-line rule:truthy
+on:
   workflow_call:
 
 env:
diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
index 5ddd818..2124106 100644
--- a/.github/workflows/zizmor.yml
+++ b/.github/workflows/zizmor.yml
@@ -2,7 +2,7 @@
 
 name: GitHub Actions Security Analysis with zizmor 🌈
 
-on:  # yamllint disable-line rule:truthy
+on:
   push:
   pull_request:
 
diff --git a/.yamllint b/.yamllint
index 68bf02c..3dde2ea 100644
--- a/.yamllint
+++ b/.yamllint
@@ -6,5 +6,15 @@ rules:
   indentation:
     level: error
     indent-sequences: false
+  quoted-strings:
+    required: only-when-needed
+  truthy:
+    allowed-values:
+    - >-
+      false
+    - >-
+      true
+    - >-  # Allow "on" key name in GHA CI/CD workflow definitions
+      on
 
 ...