diff --git a/package-lock.json b/package-lock.json
index b7d5628a93..f05bf985f7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25748,17 +25748,6 @@
         "url": "https://opencollective.com/webpack"
       }
     },
-    "node_modules/core-js": {
-      "version": "3.37.1",
-      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.37.1.tgz",
-      "integrity": "sha512-Xn6qmxrQZyB0FFY8E3bgRXei3lWDJHhvI+u0q9TKIYM49G8pAr0FgnnrFRAmsbptZL1yxRADVXn+x5AGsbBfyw==",
-      "hasInstallScript": true,
-      "license": "MIT",
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/core-js"
-      }
-    },
     "node_modules/core-js-compat": {
       "version": "3.37.1",
       "resolved": "https://registry.npmjs.org/core-js-compat/-/core-js-compat-3.37.1.tgz",
@@ -53545,7 +53534,6 @@
         "@popperjs/core": "^2.11.6",
         "@salesforce-ux/design-system": "^2.16.1",
         "@stencil/store": "2.0.16",
-        "core-js": "3.37.1",
         "dayjs": "1.11.12",
         "dompurify": "3.1.6",
         "escape-html": "1.0.3",
diff --git a/packages/atomic/package.json b/packages/atomic/package.json
index 6627093b5d..c461f41e24 100644
--- a/packages/atomic/package.json
+++ b/packages/atomic/package.json
@@ -71,7 +71,6 @@
     "@popperjs/core": "^2.11.6",
     "@salesforce-ux/design-system": "^2.16.1",
     "@stencil/store": "2.0.16",
-    "core-js": "3.37.1",
     "dayjs": "1.11.12",
     "dompurify": "3.1.6",
     "escape-html": "1.0.3",
diff --git a/packages/atomic/src/components/commerce/product-template/product-template-common.tsx b/packages/atomic/src/components/commerce/product-template/product-template-common.tsx
index 35441c4870..880f7c12af 100644
--- a/packages/atomic/src/components/commerce/product-template/product-template-common.tsx
+++ b/packages/atomic/src/components/commerce/product-template/product-template-common.tsx
@@ -4,7 +4,7 @@ import {
   ProductTemplatesHelpers,
 } from '@coveo/headless/commerce';
 import {h} from '@stencil/core';
-import 'core-js/actual/set';
+import {intersection} from '../../../utils/set';
 import {aggregate, isElementNode, isVisualNode} from '../../../utils/utils';
 import {ItemTarget} from '../../common/layout/display-options';
 import {isResultSectionNode} from '../../common/layout/sections';
@@ -179,7 +179,7 @@ export function makeMatchConditions(
     if (mustNotMatch[field]) {
       const mustNotMatchValues = new Set(mustNotMatch[field]);
       const mustMatchValues = new Set(mustMatch[field]);
-      const commonValues = mustMatchValues.intersection(mustNotMatchValues);
+      const commonValues = intersection(mustNotMatchValues, mustMatchValues);
       if (commonValues.size > 0) {
         console.error(
           `Conflicting match conditions for field ${field}, the template will be ignored.`,
diff --git a/packages/atomic/src/utils/set.ts b/packages/atomic/src/utils/set.ts
new file mode 100644
index 0000000000..fb6e1d1cd1
--- /dev/null
+++ b/packages/atomic/src/utils/set.ts
@@ -0,0 +1,10 @@
+// TODO: Replace by Set.prototype.intersection in July 2025
+export function intersection<T>(setA: Set<T>, setB: Set<T>): Set<T> {
+  const result = new Set<T>();
+  for (const elem of setA) {
+    if (setB.has(elem)) {
+      result.add(elem);
+    }
+  }
+  return result;
+}
diff --git a/packages/atomic/tsconfig.stencil.json b/packages/atomic/tsconfig.stencil.json
index a0896969c2..939589d9d3 100644
--- a/packages/atomic/tsconfig.stencil.json
+++ b/packages/atomic/tsconfig.stencil.json
@@ -4,7 +4,7 @@
     "allowSyntheticDefaultImports": true,
     "declaration": false,
     "experimentalDecorators": true,
-    "lib": ["dom", "ES2023", "ESNext.Collection"],
+    "lib": ["dom", "ES2023"],
     "moduleResolution": "Bundler",
     "module": "ES2022",
     "target": "ES2021",