diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 69e660a..335022f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         version:
-          - '1.8'
+          - '1.6'
           - '1.9'
           - '1.10'
           - 'nightly'