diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index a6bc9a6..58da399 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -16,7 +16,7 @@ env:
 jobs:
     test:
         name: PHP ${{ matrix.php-version }} + ${{ matrix.dependencies }} + ${{ matrix.variant }}
-        runs-on: ubuntu-18.04
+        runs-on: ubuntu-latest
         strategy:
             fail-fast: false
             matrix: