diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8c2c28e5..04f411f7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,6 +3,10 @@ name: CI
 
 on: [ push, pull_request ]
 
+env:
+   # workaround required for checkout@v3, https://github.com/actions/checkout/issues/1590
+   ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
+
 jobs:
   build:
     runs-on: ubuntu-latest