diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 534308a..197148a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
       - name: Install Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 10
           cache: npm
 
       - name: Install dependencies
@@ -35,7 +35,7 @@ jobs:
       - name: Install Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 10
           cache: npm
 
       - name: Install dependencies
@@ -48,7 +48,9 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node_version: [8, 10, 12, 14, 16, 18, 20]
+        # Ideally we'd also test on [12, 14, 16, 18, 20], but the current
+        # tooling does not support them.
+        node_version: [6, 8, 10]
 
     steps:
       - uses: actions/checkout@v4
@@ -74,7 +76,7 @@ jobs:
       - name: Install Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 10
           cache: npm
 
       - name: Install dependencies
@@ -92,7 +94,7 @@ jobs:
       - name: Install Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 10
           cache: npm
 
       - name: Install dependencies