diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8763050..c0ac9a9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,8 +42,8 @@ jobs:
         ]
         # the version of elasticsearch server to run, not the version of elasticsearch-py to install
         es-version: [
-          "6.8.2"
-          "7.13.4"
+          "6.8.2",
+          "7.13.4",
         ]