diff --git a/.github/workflows/aarch64.yml b/.github/workflows/aarch64.yml
index 86469b35..c9fb8a75 100644
--- a/.github/workflows/aarch64.yml
+++ b/.github/workflows/aarch64.yml
@@ -32,7 +32,7 @@ jobs:
           export PATH=/root/.cargo/bin:$PATH
           export CARGO_TERM_COLOR=always
           export CARGO_REGISTRIES_CRATES_IO_PROTOCOL=sparse
-          cargo build -j1 --release --verbose -p libcasr
-          cargo build -j1 --release --verbose -p casr
+          CARGO_BUILD_JOBS=1 cargo build --release --verbose -p libcasr
+          CARGO_BUILD_JOBS=1 cargo build --release --verbose -p casr
           cargo test --release --verbose --lib -- --test-threads 1
           cargo test --release --verbose --package casr