diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7124d95e5..15684ac53 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -77,7 +77,7 @@ jobs:
       fail-fast: false
       matrix:
         java_version: [ 8, 11, 17 ]
-        os: [ ubuntu-18.04, ubuntu-20.04, ubuntu-22.04, windows-2019, windows-2022 ]
+        os: [ ubuntu-20.04, ubuntu-22.04, windows-2019, windows-2022 ]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout the repository