diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index afd3201e2..4e51d4895 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -16,7 +16,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  CARGO_ARGS: --no-default-features --features stdlib,importlib,encodings,sqlite,ssl
+  CARGO_ARGS: --no-default-features --features stdlib,importlib,stdio,encodings,sqlite,ssl
   # Skip additional tests on Windows. They are checked on Linux and MacOS.
   # test_glob: many failing tests
   # test_io: many failing tests