diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index ebd104f..88be203 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         node-version: [8.x, 10.x, 12.x]
-        mongodb-version: [4.0, 4.2]
+        mongodb-version: [4.2]
     steps:
     - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}