diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index b9271984..18eb9724 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -129,6 +129,8 @@ jobs:
           - 26.x
           - 25.x
         include:
+          - elixir: main
+            otp: master
           - elixir: 1.16.x
             otp: 26.x
           - elixir: 1.15.x