diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index a775d8a..3eeaec8 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -11,7 +11,6 @@ jobs:
         operating-system:
           [
             ubuntu-latest,
-            ubuntu-18.04,
             windows-latest,
             macos-latest,
           ]