diff --git a/lib/rules/html-button-has-type.js b/lib/rules/html-button-has-type.js
index 31192ec99..b61a008c6 100644
--- a/lib/rules/html-button-has-type.js
+++ b/lib/rules/html-button-has-type.js
@@ -35,18 +35,9 @@ module.exports = {
       {
         type: 'object',
         properties: {
-          button: {
-            default: optionDefaults.button,
-            type: 'boolean'
-          },
-          submit: {
-            default: optionDefaults.submit,
-            type: 'boolean'
-          },
-          reset: {
-            default: optionDefaults.reset,
-            type: 'boolean'
-          }
+          button: { type: 'boolean' },
+          submit: { type: 'boolean' },
+          reset: { type: 'boolean' }
         },
         additionalProperties: false
       }
diff --git a/lib/rules/no-irregular-whitespace.js b/lib/rules/no-irregular-whitespace.js
index 8d3f59c9e..a1705f459 100644
--- a/lib/rules/no-irregular-whitespace.js
+++ b/lib/rules/no-irregular-whitespace.js
@@ -31,30 +31,12 @@ module.exports = {
       {
         type: 'object',
         properties: {
-          skipComments: {
-            type: 'boolean',
-            default: false
-          },
-          skipStrings: {
-            type: 'boolean',
-            default: true
-          },
-          skipTemplates: {
-            type: 'boolean',
-            default: false
-          },
-          skipRegExps: {
-            type: 'boolean',
-            default: false
-          },
-          skipHTMLAttributeValues: {
-            type: 'boolean',
-            default: false
-          },
-          skipHTMLTextContents: {
-            type: 'boolean',
-            default: false
-          }
+          skipComments: { type: 'boolean' },
+          skipStrings: { type: 'boolean' },
+          skipTemplates: { type: 'boolean' },
+          skipRegExps: { type: 'boolean' },
+          skipHTMLAttributeValues: { type: 'boolean' },
+          skipHTMLTextContents: { type: 'boolean' }
         },
         additionalProperties: false
       }
diff --git a/lib/rules/require-macro-variable-name.js b/lib/rules/require-macro-variable-name.js
index f48df6bba..02cb2f5af 100644
--- a/lib/rules/require-macro-variable-name.js
+++ b/lib/rules/require-macro-variable-name.js
@@ -28,26 +28,11 @@ module.exports = {
       {
         type: 'object',
         properties: {
-          defineProps: {
-            type: 'string',
-            default: DEFAULT_OPTIONS.defineProps
-          },
-          defineEmits: {
-            type: 'string',
-            default: DEFAULT_OPTIONS.defineEmits
-          },
-          defineSlots: {
-            type: 'string',
-            default: DEFAULT_OPTIONS.defineSlots
-          },
-          useSlots: {
-            type: 'string',
-            default: DEFAULT_OPTIONS.useSlots
-          },
-          useAttrs: {
-            type: 'string',
-            default: DEFAULT_OPTIONS.useAttrs
-          }
+          defineProps: { type: 'string' },
+          defineEmits: { type: 'string' },
+          defineSlots: { type: 'string' },
+          useSlots: { type: 'string' },
+          useAttrs: { type: 'string' }
         },
         additionalProperties: false
       }
@@ -60,7 +45,7 @@ module.exports = {
   },
   /** @param {RuleContext} context */
   create(context) {
-    const options = context.options[0] || DEFAULT_OPTIONS
+    const options = Object.assign({}, DEFAULT_OPTIONS, context.options[0])
     const relevantMacros = new Set([
       ...Object.keys(DEFAULT_OPTIONS),
       'withDefaults'
diff --git a/lib/rules/sort-keys.js b/lib/rules/sort-keys.js
index 9598adf0b..edfa1360b 100644
--- a/lib/rules/sort-keys.js
+++ b/lib/rules/sort-keys.js
@@ -82,8 +82,7 @@ module.exports = {
         type: 'object',
         properties: {
           caseSensitive: {
-            type: 'boolean',
-            default: true
+            type: 'boolean'
           },
           ignoreChildrenOf: {
             type: 'array'
@@ -93,16 +92,13 @@ module.exports = {
           },
           minKeys: {
             type: 'integer',
-            minimum: 2,
-            default: 2
+            minimum: 2
           },
           natural: {
-            type: 'boolean',
-            default: false
+            type: 'boolean'
           },
           runOutsideVue: {
-            type: 'boolean',
-            default: true
+            type: 'boolean'
           }
         },
         additionalProperties: false
@@ -137,7 +133,7 @@ module.exports = {
       (options && options.ignoreChildrenOf) || ['model']
     )
     const insensitive = options && options.caseSensitive === false
-    const minKeys = options && options.minKeys
+    const minKeys = options?.minKeys ?? 2
     const natural = options && options.natural
     const isValidOrder =
       isValidOrders[order + (insensitive ? 'I' : '') + (natural ? 'N' : '')]