diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e9e49b3e2..3c65262f5 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -2,9 +2,6 @@ name: build
 
 on: [push, pull_request]
 
-env:
-  TRUFFLERUBYOPT: --experimental-options --warn-locale=false
-
 jobs:
   irb:
     name: irb (${{ matrix.ruby }} / ${{ matrix.os }})