diff --git a/src/context/context.spec.ts b/src/context/context.spec.ts
index 54ed4a696..de15c6c12 100644
--- a/src/context/context.spec.ts
+++ b/src/context/context.spec.ts
@@ -216,15 +216,6 @@ describe('Context', function () {
         delete (Object.prototype as any).last
       }
     })
-    it('should treat bracket access like dot access for magic keys', function () {
-      Object.assign(Object.prototype, { size: 123 })
-      try {
-        ctx.push({ foo: {} })
-        expect(ctx.getSync(['foo', 'size'])).toEqual(0)
-      } finally {
-        delete (Object.prototype as any).size
-      }
-    })
   })
 
   describe('.getAll()', function () {
diff --git a/test/e2e/issues.spec.ts b/test/e2e/issues.spec.ts
index d63396ab9..c5243fe66 100644
--- a/test/e2e/issues.spec.ts
+++ b/test/e2e/issues.spec.ts
@@ -215,21 +215,6 @@ describe('Issues', function () {
     const html = engine.parseAndRenderSync('{{foo | size}}-{{bar.coo}}', { foo: 'foo', bar: Object.create({ coo: 'COO' }) })
     expect(html).toBe('3-')
   })
-  it('should block prototype pollution via size/first/last magic keys', () => {
-    Object.assign(Object.prototype, { size: 123, first: 'FIRST_PROTO', last: 'LAST_PROTO' })
-    try {
-      const engine = new Liquid({ ownPropertyOnly: true })
-      const tpl = '{{ foo.size }}-{{ foo.first }}-{{ foo.last }}-{{ foo["size"] }}'
-      expect(engine.parseAndRenderSync(tpl, { foo: {} })).toBe('0---0')
-      expect(engine.parseAndRenderSync('{{ arr.first }}-{{ arr.last }}-{{ arr.size }}', { arr: [1, 2, 3] })).toBe('1-3-3')
-      const engine2 = new Liquid({ ownPropertyOnly: false })
-      expect(engine2.parseAndRenderSync('{{ foo.size }}-{{ foo.first }}-{{ foo.last }}', { foo: {} })).toBe('123-FIRST_PROTO-LAST_PROTO')
-    } finally {
-      delete (Object.prototype as any).size
-      delete (Object.prototype as any).first
-      delete (Object.prototype as any).last
-    }
-  })
   it('Liquidjs divided_by not compatible with Ruby/Shopify Liquid #465', () => {
     const engine = new Liquid({ ownPropertyOnly: true })
     const html = engine.parseAndRenderSync('{{ 5 | divided_by: 3, true }}')