diff --git a/.github/workflows/cs.yml b/.github/workflows/cs.yml
index 95b1dd4..d402f45 100644
--- a/.github/workflows/cs.yml
+++ b/.github/workflows/cs.yml
@@ -53,11 +53,16 @@ jobs:
           # Bust the cache at least once a month - output format: YYYY-MM.
           custom-cache-suffix: $(date -u "+%Y-%m")
 
+      # Updating the lists can fail intermittently, typically after Microsoft has released a new package.
+      # This should not be blocking for this job, so ignore any errors from this step.
+      # Ref: https://github.com/dotnet/core/issues/4167
+      - name: Update the available packages list
+        continue-on-error: true
+        run: sudo apt-get update
+
       # @link http://xmlsoft.org/xmllint.html
       - name: Install xmllint
-        run: |
-          sudo apt-get update
-          sudo apt-get install --no-install-recommends -y libxml2-utils
+        run: sudo apt-get install --no-install-recommends -y libxml2-utils
 
       - name: Download the XSD schema
         run: curl http://www.w3.org/2001/XMLSchema.xsd --output XMLSchema.xsd
diff --git a/.github/workflows/quicktest.yml b/.github/workflows/quicktest.yml
index 1f76a94..c1e237f 100644
--- a/.github/workflows/quicktest.yml
+++ b/.github/workflows/quicktest.yml
@@ -38,10 +38,15 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      # Updating the lists can fail intermittently, typically after Microsoft has released a new package.
+      # This should not be blocking for this job, so ignore any errors from this step.
+      # Ref: https://github.com/dotnet/core/issues/4167
+      - name: Update the available packages list
+        continue-on-error: true
+        run: sudo apt-get update
+
       - name: Install xmllint
-        run: |
-          sudo apt-get update
-          sudo apt-get install --no-install-recommends -y libxml2-utils
+        run: sudo apt-get install --no-install-recommends -y libxml2-utils
 
       # On stable PHPCS versions, allow for PHP deprecation notices.
       # Unit tests don't need to fail on those for stable releases where those issues won't get fixed anymore.
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 8b24582..83994e2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -82,10 +82,15 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      # Updating the lists can fail intermittently, typically after Microsoft has released a new package.
+      # This should not be blocking for this job, so ignore any errors from this step.
+      # Ref: https://github.com/dotnet/core/issues/4167
+      - name: Update the available packages list
+        continue-on-error: true
+        run: sudo apt-get update
+
       - name: Install xmllint
-        run: |
-          sudo apt-get update
-          sudo apt-get install --no-install-recommends -y libxml2-utils
+        run: sudo apt-get install --no-install-recommends -y libxml2-utils
 
       - name: Setup ini config
         id: set_ini