diff --git a/package.json b/package.json
index 6881c899..ebc5b934 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "jest-snapshot-serializer-ansi": "^1.0.0",
     "jest-watch-select-projects": "^2.0.0",
     "jsdom": "^16.4.0",
-    "kcd-scripts": "^11.0.0",
+    "kcd-scripts": "^12.2.0",
     "typescript": "^4.1.2"
   },
   "eslintConfig": {
@@ -64,6 +64,9 @@
       "./node_modules/kcd-scripts/eslint.js",
       "plugin:import/typescript"
     ],
+    "parserOptions": {
+      "ecmaVersion": 2020
+    },
     "rules": {
       "@typescript-eslint/prefer-includes": "off",
       "import/prefer-default-export": "off",
diff --git a/src/__tests__/fake-timers.js b/src/__tests__/fake-timers.js
index b9700af3..7a034b1f 100644
--- a/src/__tests__/fake-timers.js
+++ b/src/__tests__/fake-timers.js
@@ -70,6 +70,7 @@ test('recursive timers do not cause issues', async () => {
   let recurse = true
   function startTimer() {
     setTimeout(() => {
+      // eslint-disable-next-line jest/no-conditional-in-test
       if (recurse) startTimer()
     }, 1)
   }
diff --git a/src/__tests__/role.js b/src/__tests__/role.js
index fb573bcd..08f0dc92 100644
--- a/src/__tests__/role.js
+++ b/src/__tests__/role.js
@@ -274,6 +274,7 @@ test('accessible name filter implements TextMatch', () => {
   expect(
     getByRole('heading', {
       name: (name, element) => {
+        // eslint-disable-next-line jest/no-conditional-in-test
         return element.nodeName === 'H2' && name === 'Your Signature'
       },
     }),
diff --git a/src/__tests__/wait-for-element-to-be-removed.js b/src/__tests__/wait-for-element-to-be-removed.js
index 775b8b82..06b6dd26 100644
--- a/src/__tests__/wait-for-element-to-be-removed.js
+++ b/src/__tests__/wait-for-element-to-be-removed.js
@@ -98,6 +98,7 @@ test('rethrows non-testing-lib errors', () => {
   const error = new Error('my own error')
   return expect(
     waitForElementToBeRemoved(() => {
+      // eslint-disable-next-line jest/no-conditional-in-test
       if (throwIt) {
         throw error
       }
diff --git a/src/__tests__/wait-for.js b/src/__tests__/wait-for.js
index c1198e33..589df6f8 100644
--- a/src/__tests__/wait-for.js
+++ b/src/__tests__/wait-for.js
@@ -275,7 +275,7 @@ test('does not work after it resolves', async () => {
       context = 'act'
       try {
         const result = callback()
-        // eslint-disable-next-line jest/no-if
+        // eslint-disable-next-line jest/no-if, jest/no-conditional-in-test
         if (typeof result?.then === 'function') {
           const thenable = result
           return {
@@ -319,6 +319,7 @@ test('does not work after it resolves', async () => {
 
   await waitFor(
     () => {
+      // eslint-disable-next-line jest/no-conditional-in-test
       if (data === null) {
         throw new Error('not found')
       }
diff --git a/src/helpers.js b/src/helpers.js
index ed356592..ab9c80ec 100644
--- a/src/helpers.js
+++ b/src/helpers.js
@@ -9,6 +9,8 @@ function jestFakeTimersAreEnabled() {
       // legacy timers
       setTimeout._isMockFunction === true ||
       // modern timers
+      // Disabling linting rule - hasOwn is not available in Node 12/14
+      // eslint-disable-next-line prefer-object-has-own
       Object.prototype.hasOwnProperty.call(setTimeout, 'clock')
     )
   }
diff --git a/src/queries/label-text.ts b/src/queries/label-text.ts
index 39e766d5..33eaba6b 100644
--- a/src/queries/label-text.ts
+++ b/src/queries/label-text.ts
@@ -71,20 +71,23 @@ const queryAllByLabelText: AllByText = (
           if (
             matcher(label.content, label.formControl, text, matchNormalizer) &&
             label.formControl
-          )
+          ) {
             labelledElements.push(label.formControl)
+          }
         })
       const labelsValue = labelList
         .filter(label => Boolean(label.content))
         .map(label => label.content)
       if (
         matcher(labelsValue.join(' '), labelledElement, text, matchNormalizer)
-      )
+      ) {
         labelledElements.push(labelledElement)
+      }
       if (labelsValue.length > 1) {
         labelsValue.forEach((labelValue, index) => {
-          if (matcher(labelValue, labelledElement, text, matchNormalizer))
+          if (matcher(labelValue, labelledElement, text, matchNormalizer)) {
             labelledElements.push(labelledElement)
+          }
 
           const labelsFiltered = [...labelsValue]
           labelsFiltered.splice(index, 1)
@@ -97,8 +100,9 @@ const queryAllByLabelText: AllByText = (
                 text,
                 matchNormalizer,
               )
-            )
+            ) {
               labelledElements.push(labelledElement)
+            }
           }
         })
       }