diff --git a/.github/workflows/manylinux2010.yml b/.github/workflows/manylinux2010.yml
index 9188b3e..2cf5db9 100644
--- a/.github/workflows/manylinux2010.yml
+++ b/.github/workflows/manylinux2010.yml
@@ -13,6 +13,7 @@ jobs:
           container-image: ['quay.io/pypa/manylinux2010_x86_64', 'quay.io/pypa/manylinux2010_i686']
 
     steps:
+    # NOTE: Cannot use checkout@v2 as it requires a newer version glibc, but that's not possible with manylinux without a secondary sysroot
     - uses: actions/checkout@v1
     # capnproto build requires cmake 3+, CentOS 6 (manylinux2010) defaults to cmake 2.8
     - name: Install dependencies
diff --git a/.github/workflows/packagingtest.yml b/.github/workflows/packagingtest.yml
index 4fa292a..504b8ab 100644
--- a/.github/workflows/packagingtest.yml
+++ b/.github/workflows/packagingtest.yml
@@ -16,7 +16,7 @@ jobs:
         os: [ubuntu-latest, macOS-latest, windows-latest]
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v1
       with: