diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 13b716e..f6f3bdb 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -22,7 +22,8 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
-          - "2.2"
+          # Bundler 1.x not working on CI
+          # - "2.2"
           - "2.3"
           - "2.4"
           - "2.5"