diff --git a/meta/classes/create-spdx-3.0.bbclass b/meta/classes/create-spdx-3.0.bbclass
index 25f3aa5f43..b4a5156e70 100644
--- a/meta/classes/create-spdx-3.0.bbclass
+++ b/meta/classes/create-spdx-3.0.bbclass
@@ -134,7 +134,6 @@ python do_create_spdx() {
     import oe.spdx30_tasks
     oe.spdx30_tasks.create_spdx(d)
 }
-do_create_spdx[vardepsexclude] += "BB_NUMBER_THREADS SPDX_BUILD_HOST"
 do_create_spdx[vardeps] += "\
     SPDX_INCLUDE_BITBAKE_PARENT_BUILD \
     SPDX_PACKAGE_ADDITIONAL_PURPOSE \
@@ -170,7 +169,7 @@ python do_create_package_spdx() {
     import oe.spdx30_tasks
     oe.spdx30_tasks.create_package_spdx(d)
 }
-do_create_package_spdx[vardepsexclude] += "OVERRIDES SPDX_MULTILIB_SSTATE_ARCHS"
+oe.spdx30_tasks.create_package_spdx[vardepsexclude] = "OVERRIDES"
 
 addtask do_create_package_spdx after do_create_spdx before do_build do_rm_work
 SSTATETASKS += "do_create_package_spdx"
diff --git a/meta/lib/oe/__init__.py b/meta/lib/oe/__init__.py
index d760481283..3179a3f3d2 100644
--- a/meta/lib/oe/__init__.py
+++ b/meta/lib/oe/__init__.py
@@ -11,4 +11,4 @@ __path__ = extend_path(__path__, __name__)
 # processed correctly (e.g. qa)
 BBIMPORTS = ["qa", "data", "path", "utils", "types", "package", "packagedata", \
              "packagegroup", "sstatesig", "lsb", "cachedpath", "license", \
-             "reproducible", "rust", "buildcfg", "go"]
+             "reproducible", "rust", "buildcfg", "go", "spdx30_tasks", "spdx_common"]
diff --git a/meta/lib/oe/spdx_common.py b/meta/lib/oe/spdx_common.py
index 23a17271d6..e1b26edaaf 100644
--- a/meta/lib/oe/spdx_common.py
+++ b/meta/lib/oe/spdx_common.py
@@ -12,7 +12,7 @@ import re
 import shutil
 
 from pathlib import Path
-
+from dataclasses import dataclass
 
 LIC_REGEX = re.compile(
     rb"^\W*SPDX-License-Identifier:\s*([ \w\d.()+-]+?)(?:\s+\W*)?$",
@@ -77,7 +77,11 @@ def process_sources(d):
     return True
 
 
-Dep = collections.namedtuple("Dep", ["pn", "hashfn", "in_taskhash"])
+@dataclass(frozen=True)
+class Dep(object):
+    pn: str
+    hashfn: str
+    in_taskhash: bool
 
 
 def collect_direct_deps(d, dep_task):