diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 126a599..4bfa5ce 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,6 +13,8 @@ jobs:
             arch: arm64
           - os: macos-latest
             arch: x86_64
+          - os: ubuntu-latest
+            arch: aarch64
           - os: ubuntu-latest
             arch: i686
           - os: ubuntu-latest
diff --git a/scripts/build-openssl.py b/scripts/build-openssl.py
index 444ea31..fffafeb 100644
--- a/scripts/build-openssl.py
+++ b/scripts/build-openssl.py
@@ -83,7 +83,7 @@ def run(cmd, *, env=None):
     extract("openssl", "https://www.openssl.org/source/openssl-3.1.4.tar.gz")
     os.chdir("openssl")
     run(["./config"] + configure_args + ["no-comp", "no-shared", "no-tests"])
-    run(["make", "-j"])
+    run(["make"])
     run(["make", "install_sw", "INSTALLTOP=" + dest_dir, "LIBDIR=lib"])
 
     run(["tar", "czvf", output_tarball, "-C", dest_dir, "include", "lib"])