diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 35a2d25..885fdd6 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -2,7 +2,7 @@ name: test
 on: [push]
 jobs:
   unittests:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout
         uses: actions/checkout@v2