diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 65989f3..a6278cc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -108,7 +108,7 @@ jobs:
 
     lowest:
         name: Unzer Prefer Lowest (PHP ${{ matrix.php-versions }})
-        runs-on: ubuntu-18.04
+        runs-on: ubuntu-22.04
 
         steps:
             - name: Checkout