diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index a0468b0..810dbd8 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -19,7 +19,7 @@ jobs:
       matrix:
         version:
           - '1.6'
-          - '1.7'
+          - '1'
         os:
           - ubuntu-latest
           - windows-latest