diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e1dd0e55..8de003e6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.6'
+          - '1.9'
           - '1'
           - 'nightly'
         os: