diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index edf91909..cc766a4c 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -47,7 +47,5 @@ jobs:
       - name: i686-windows(msvc) Build
         run: cargo check --verbose --target i686-pc-windows-msvc
       - name: Run tests
-        env:
-          RUST_TESTS_THREADS: 1
         run: cargo test --verbose