diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index 09056755f..47d6cbb99 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -8,9 +8,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Install Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
           node-version: 20
           cache: npm
@@ -34,9 +34,9 @@ jobs:
     name: Node.js ${{ matrix.node-version }} test
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Install Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
           cache: npm
@@ -57,9 +57,9 @@ jobs:
     name: Typings tests (typescript@${{ matrix.ts-version.ts }})
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Install Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
           node-version: 20
           cache: npm
@@ -77,9 +77,9 @@ jobs:
     name: Lint
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Install Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
           node-version: 20
           cache: npm
diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
index 8ff181147..6535c407c 100644
--- a/.github/workflows/npm-publish.yml
+++ b/.github/workflows/npm-publish.yml
@@ -11,8 +11,8 @@ jobs:
   publish-npm:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
         with:
           node-version: 20
           registry-url: https://registry.npmjs.org/
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index d2741e435..f5551edf7 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/stale@v3
+    - uses: actions/stale@v9
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
         stale-issue-message: 'This issue is stale because it has been open 90 days with no activity. It will be closed soon. Please comment/reopen if this issue is still relevant.'
diff --git a/test/saucelabs/karma.conf.js b/test/saucelabs/karma.conf.js
index c9400d553..c8c91458d 100644
--- a/test/saucelabs/karma.conf.js
+++ b/test/saucelabs/karma.conf.js
@@ -23,11 +23,6 @@ const browsers = {
 };
 
 module.exports = config => {
-  // re-defining the env variables seems to fix the auth issue
-  // eslint-disable-next-line no-self-assign
-  process.env.SAUCE_USERNAME = process.env.SAUCE_USERNAME
-  // eslint-disable-next-line no-self-assign
-  process.env.SAUCE_ACCESS_KEY = process.env.SAUCE_ACCESS_KEY
   if (
     !(
       process.env.SAUCE_USERNAME &&