diff --git a/meta/classes/create-spdx-2.2.bbclass b/meta/classes/create-spdx-2.2.bbclass
index 13d13fe1fc..42b693d586 100644
--- a/meta/classes/create-spdx-2.2.bbclass
+++ b/meta/classes/create-spdx-2.2.bbclass
@@ -466,13 +466,11 @@ python do_create_spdx() {
     @contextmanager
     def optional_tarfile(name, guard, mode="w"):
         import tarfile
-        import bb.compress.zstd
-
-        num_threads = int(d.getVar("BB_NUMBER_THREADS"))
+        import gzip
 
         if guard:
             name.parent.mkdir(parents=True, exist_ok=True)
-            with bb.compress.zstd.open(name, mode=mode + "b", num_threads=num_threads) as f:
+            with gzip.open(name, mode=mode + "b") as f:
                 with tarfile.open(fileobj=f, mode=mode + "|") as tf:
                     yield tf
         else:
@@ -550,7 +548,7 @@ python do_create_spdx() {
     add_download_packages(d, doc, recipe)
 
     if process_sources(d) and include_sources:
-        recipe_archive = deploy_dir_spdx / "recipes" / (doc.name + ".tar.zst")
+        recipe_archive = deploy_dir_spdx / "recipes" / (doc.name + ".tar.gz")
         with optional_tarfile(recipe_archive, archive_sources) as archive:
             spdx_get_src(d)
 
@@ -618,7 +616,7 @@ python do_create_spdx() {
             package_doc.add_relationship(spdx_package, "GENERATED_FROM", "%s:%s" % (recipe_ref.externalDocumentId, recipe.SPDXID))
             package_doc.add_relationship(package_doc, "DESCRIBES", spdx_package)
 
-            package_archive = deploy_dir_spdx / "packages" / (package_doc.name + ".tar.zst")
+            package_archive = deploy_dir_spdx / "packages" / (package_doc.name + ".tar.gz")
             with optional_tarfile(package_archive, archive_packaged) as archive:
                 package_files = add_package_files(
                     d,
@@ -899,8 +897,8 @@ python image_combine_spdx() {
             if link != target_path:
                 link.symlink_to(os.path.relpath(target_path, link.parent))
 
-    spdx_tar_path = imgdeploydir / (image_name + ".spdx.tar.zst")
-    make_image_link(spdx_tar_path, ".spdx.tar.zst")
+    spdx_tar_path = imgdeploydir / (image_name + ".spdx.tar.gz")
+    make_image_link(spdx_tar_path, ".spdx.tar.gz")
 }
 
 python sdk_host_combine_spdx() {
@@ -931,7 +929,7 @@ def combine_spdx(d, rootfs_name, rootfs_deploydir, rootfs_spdxid, packages, spdx
     from datetime import timezone, datetime
     from pathlib import Path
     import tarfile
-    import bb.compress.zstd
+    import gzip
 
     creation_time = datetime.now(tz=timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ")
     deploy_dir_spdx = Path(d.getVar("DEPLOY_DIR_SPDX"))
@@ -1002,8 +1000,8 @@ def combine_spdx(d, rootfs_name, rootfs_deploydir, rootfs_spdxid, packages, spdx
 
     index = {"documents": []}
 
-    spdx_tar_path = rootfs_deploydir / (rootfs_name + ".spdx.tar.zst")
-    with bb.compress.zstd.open(spdx_tar_path, "w", num_threads=num_threads) as f:
+    spdx_tar_path = rootfs_deploydir / (rootfs_name + ".spdx.tar.gz")
+    with gzip.open(spdx_tar_path, "w") as f:
         with tarfile.open(fileobj=f, mode="w|") as tar:
             def collect_spdx_document(path):
                 nonlocal tar