diff --git a/src/components/Breadcrumb.vue b/src/components/Breadcrumb.vue
index 85a3520a..744741d2 100644
--- a/src/components/Breadcrumb.vue
+++ b/src/components/Breadcrumb.vue
@@ -69,17 +69,15 @@ export default {
     },
     separator: {
       type: String,
-      default: ' > ',
+      default: undefined,
     },
     rootPath: {
       type: String,
-      default: null,
+      default: undefined,
     },
     transformItems: {
       type: Function,
-      default(items) {
-        return items;
-      },
+      default: undefined,
     },
   },
   computed: {
diff --git a/src/components/ClearRefinements.vue b/src/components/ClearRefinements.vue
index 1704a6fc..0eb5aacc 100644
--- a/src/components/ClearRefinements.vue
+++ b/src/components/ClearRefinements.vue
@@ -36,21 +36,17 @@ export default {
     createSuitMixin({ name: 'ClearRefinements' }),
   ],
   props: {
-    // explicitly no default, since included and excluded are incompatible
-    // eslint-disable-next-line vue/require-default-prop
     excludedAttributes: {
       type: Array,
+      default: undefined,
     },
-    // explicitly no default, since included and excluded are incompatible
-    // eslint-disable-next-line vue/require-default-prop
     includedAttributes: {
       type: Array,
+      default: undefined,
     },
     transformItems: {
       type: Function,
-      default(items) {
-        return items;
-      },
+      default: undefined,
     },
   },
   computed: {
diff --git a/src/components/CurrentRefinements.vue b/src/components/CurrentRefinements.vue
index b2b27963..24f5a867 100644
--- a/src/components/CurrentRefinements.vue
+++ b/src/components/CurrentRefinements.vue
@@ -70,21 +70,17 @@ export default {
     }),
   ],
   props: {
-    // no default because included and excluded are incompatible
-    // eslint-disable-next-line vue/require-default-prop
     includedAttributes: {
       type: Array,
+      default: undefined,
     },
-    // no default because included and excluded are incompatible
-    // eslint-disable-next-line vue/require-default-prop
     excludedAttributes: {
       type: Array,
+      default: undefined,
     },
     transformItems: {
       type: Function,
-      default(items) {
-        return items;
-      },
+      default: undefined,
     },
   },
   computed: {
diff --git a/src/components/HierarchicalMenu.vue b/src/components/HierarchicalMenu.vue
index f3728999..f06260d3 100644
--- a/src/components/HierarchicalMenu.vue
+++ b/src/components/HierarchicalMenu.vue
@@ -68,11 +68,11 @@ export default {
     },
     limit: {
       type: Number,
-      default: 10,
+      default: undefined,
     },
     showMoreLimit: {
       type: Number,
-      default: 20,
+      default: undefined,
     },
     showMore: {
       type: Boolean,
@@ -80,27 +80,23 @@ export default {
     },
     sortBy: {
       type: [Array, Function],
-      default() {
-        return ['name:asc'];
-      },
+      default: undefined,
     },
     separator: {
       type: String,
-      default: ' > ',
+      default: undefined,
     },
     rootPath: {
       type: String,
-      default: null,
+      default: undefined,
     },
     showParentLevel: {
       type: Boolean,
-      default: true,
+      default: undefined,
     },
     transformItems: {
       type: Function,
-      default(items) {
-        return items;
-      },
+      default: undefined,
     },
   },
   computed: {
diff --git a/src/components/Highlighter.vue b/src/components/Highlighter.vue
index bee0e498..c7e05a4f 100644
--- a/src/components/Highlighter.vue
+++ b/src/components/Highlighter.vue
@@ -27,10 +27,22 @@ export default {
       type: String,
       default: 'mark',
     },
-    suit: { type: Function, required: true },
-    highlightProperty: { type: String, required: true },
-    preTag: { type: String, required: true },
-    postTag: { type: String, required: true },
+    suit: {
+      type: Function,
+      required: true,
+    },
+    highlightProperty: {
+      type: String,
+      required: true,
+    },
+    preTag: {
+      type: String,
+      required: true,
+    },
+    postTag: {
+      type: String,
+      required: true,
+    },
   },
   data() {
     return {
diff --git a/src/components/Hits.vue b/src/components/Hits.vue
index ba74e14d..296ad86c 100644
--- a/src/components/Hits.vue
+++ b/src/components/Hits.vue
@@ -44,9 +44,7 @@ export default {
     },
     transformItems: {
       type: Function,
-      default(items) {
-        return items;
-      },
+      default: undefined,
     },
   },
   computed: {
diff --git a/src/components/HitsPerPage.vue b/src/components/HitsPerPage.vue
index a2595fa1..bc5d184d 100644
--- a/src/components/HitsPerPage.vue
+++ b/src/components/HitsPerPage.vue
@@ -43,13 +43,10 @@ export default {
     items: {
       type: Array,
       required: true,
-      default: () => [],
     },
     transformItems: {
       type: Function,
-      default(items) {
-        return items;
-      },
+      default: undefined,
     },
   },
   data() {
diff --git a/src/components/InfiniteHits.vue b/src/components/InfiniteHits.vue
index 864ee7f2..81888ed0 100644
--- a/src/components/InfiniteHits.vue
+++ b/src/components/InfiniteHits.vue
@@ -82,9 +82,7 @@ export default {
     },
     transformItems: {
       type: Function,
-      default(items) {
-        return items;
-      },
+      default: undefined,
     },
     cache: {
       type: Object,
diff --git a/src/components/InstantSearch.js b/src/components/InstantSearch.js
index 928f2798..f655cd10 100644
--- a/src/components/InstantSearch.js
+++ b/src/components/InstantSearch.js
@@ -16,14 +16,14 @@ export default createInstantSearchComponent({
     },
     insightsClient: {
       type: Function,
-      required: false,
+      default: undefined,
     },
     indexName: {
       type: String,
       required: true,
     },
     routing: {
-      default: null,
+      default: undefined,
       validator(value) {
         if (
           typeof value === 'boolean' ||
@@ -39,19 +39,19 @@ export default createInstantSearchComponent({
     },
     stalledSearchDelay: {
       type: Number,
-      default: 200,
+      default: undefined,
     },
     searchFunction: {
       type: Function,
-      default: null,
+      default: undefined,
     },
     initialUiState: {
       type: Object,
-      required: false,
+      default: undefined,
     },
     apiKey: {
       type: String,
-      default: null,
+      default: undefined,
       validator(value) {
         if (value) {
           warn(oldApiWarning);
@@ -61,7 +61,7 @@ export default createInstantSearchComponent({
     },
     appId: {
       type: String,
-      default: null,
+      default: undefined,
       validator(value) {
         if (value) {
           warn(oldApiWarning);
diff --git a/src/components/Menu.vue b/src/components/Menu.vue
index 9af47613..2b0288d6 100644
--- a/src/components/Menu.vue
+++ b/src/components/Menu.vue
@@ -72,11 +72,11 @@ export default {
     // },
     limit: {
       type: Number,
-      default: 10,
+      default: undefined,
     },
     showMoreLimit: {
       type: Number,
-      default: 20,
+      default: undefined,
     },
     showMore: {
       type: Boolean,
@@ -84,15 +84,11 @@ export default {
     },
     sortBy: {
       type: [Array, Function],
-      default() {
-        return ['count:desc', 'name:asc'];
-      },
+      default: undefined,
     },
     transformItems: {
       type: Function,
-      default(items) {
-        return items;
-      },
+      default: undefined,
     },
   },
   computed: {
diff --git a/src/components/MenuSelect.vue b/src/components/MenuSelect.vue
index f8ae8843..6cc9acd2 100644
--- a/src/components/MenuSelect.vue
+++ b/src/components/MenuSelect.vue
@@ -63,9 +63,7 @@ export default {
     },
     sortBy: {
       type: [Array, Function],
-      default() {
-        return ['name:asc'];
-      },
+      default: undefined,
     },
     transformItems: {
       type: Function,
diff --git a/src/components/NumericMenu.vue b/src/components/NumericMenu.vue
index afbb13f7..c5a71aba 100644
--- a/src/components/NumericMenu.vue
+++ b/src/components/NumericMenu.vue
@@ -59,9 +59,7 @@ export default {
     },
     transformItems: {
       type: Function,
-      default(items) {
-        return items;
-      },
+      default: undefined,
     },
   },
   computed: {
diff --git a/src/components/Pagination.vue b/src/components/Pagination.vue
index c744e9af..1dcfbaec 100644
--- a/src/components/Pagination.vue
+++ b/src/components/Pagination.vue
@@ -182,7 +182,7 @@ export default {
   props: {
     padding: {
       type: Number,
-      default: 3,
+      default: undefined,
       validator(value) {
         return value > 0;
       },
diff --git a/src/components/QueryRuleContext.js b/src/components/QueryRuleContext.js
index 8f650154..f93e9641 100644
--- a/src/components/QueryRuleContext.js
+++ b/src/components/QueryRuleContext.js
@@ -18,7 +18,7 @@ export default {
     transformRuleContexts: {
       type: Function,
       required: false,
-      default: ruleContexts => ruleContexts,
+      default: undefined,
     },
   },
   computed: {
diff --git a/src/components/QueryRuleCustomData.vue b/src/components/QueryRuleCustomData.vue
index 6e23856a..5689e005 100644
--- a/src/components/QueryRuleCustomData.vue
+++ b/src/components/QueryRuleCustomData.vue
@@ -36,7 +36,7 @@ export default {
     transformItems: {
       type: Function,
       required: false,
-      default: items => items,
+      default: undefined,
     },
   },
   computed: {
diff --git a/src/components/RangeInput.vue b/src/components/RangeInput.vue
index fb209f06..c4facb66 100644
--- a/src/components/RangeInput.vue
+++ b/src/components/RangeInput.vue
@@ -80,11 +80,13 @@ export default {
     min: {
       type: Number,
       required: false,
+      // @major: remove this default
       default: -Infinity,
     },
     max: {
       type: Number,
       required: false,
+      // @major: remove this default
       default: Infinity,
     },
     precision: {
diff --git a/src/components/RatingMenu.vue b/src/components/RatingMenu.vue
index 309be50d..06376bc1 100644
--- a/src/components/RatingMenu.vue
+++ b/src/components/RatingMenu.vue
@@ -99,7 +99,7 @@ export default {
     },
     max: {
       type: Number,
-      default: 5,
+      default: undefined,
     },
   },
   computed: {
diff --git a/src/components/RefinementList.vue b/src/components/RefinementList.vue
index a88c4554..c40d43ab 100644
--- a/src/components/RefinementList.vue
+++ b/src/components/RefinementList.vue
@@ -122,12 +122,12 @@ export default {
     },
     searchable: {
       type: Boolean,
-      default: false,
+      default: undefined,
     },
     searchablePlaceholder: {
-      default: 'Search here…',
       type: String,
       required: false,
+      default: 'Search here…',
     },
     operator: {
       default: 'or',
@@ -138,28 +138,28 @@ export default {
     },
     limit: {
       type: Number,
-      default: 10,
       required: false,
+      default: undefined,
     },
     showMoreLimit: {
       type: Number,
-      default: 20,
       required: false,
+      default: undefined,
     },
     showMore: {
       type: Boolean,
-      default: false,
       required: false,
+      default: false,
     },
     sortBy: {
       type: [Array, Function],
-      default: () => ['isRefined', 'count:desc', 'name:asc'],
       required: false,
+      default: undefined,
     },
     transformItems: {
       type: Function,
-      default: items => items,
       required: false,
+      default: undefined,
     },
   },
   data() {
diff --git a/src/components/SortBy.vue b/src/components/SortBy.vue
index b61113e0..83e76b58 100644
--- a/src/components/SortBy.vue
+++ b/src/components/SortBy.vue
@@ -48,9 +48,7 @@ export default {
     },
     transformItems: {
       type: Function,
-      default(items) {
-        return items;
-      },
+      default: undefined,
     },
   },
   computed: {
diff --git a/src/components/ToggleRefinement.vue b/src/components/ToggleRefinement.vue
index 2f82f54f..b9f95a4e 100644
--- a/src/components/ToggleRefinement.vue
+++ b/src/components/ToggleRefinement.vue
@@ -63,8 +63,6 @@ export default {
     off: {
       type: [String, Number, Boolean, Array],
       required: false,
-      // explicit otherwise Vue coerces the default value
-      // to false because of the `Boolean` prop type
       default: undefined,
     },
   },