diff --git a/.github/matrix-commitly.yml b/.github/matrix-commitly.yml
index 7685340597c3..5e52cbc80f73 100644
--- a/.github/matrix-commitly.yml
+++ b/.github/matrix-commitly.yml
@@ -1,7 +1,7 @@
 # please see matrix-full.yml for meaning of each field
 build-packages:
 - label: ubuntu-22.04
-  os: ubuntu-22.04
+  image: ubuntu:22.04
   package: deb
   check-manifest-suite: ubuntu-22.04-amd64
 
diff --git a/.github/matrix-full.yml b/.github/matrix-full.yml
index b011607f4c89..376fcac72ef7 100644
--- a/.github/matrix-full.yml
+++ b/.github/matrix-full.yml
@@ -12,9 +12,11 @@ build-packages:
   package: deb
   check-manifest-suite: ubuntu-20.04-amd64
 - label: ubuntu-22.04
+  image: ubuntu:22.04
   package: deb
   check-manifest-suite: ubuntu-22.04-amd64
 - label: ubuntu-22.04-arm64
+  image: ubuntu:22.04
   package: deb
   bazel-args: --platforms=//:generic-crossbuild-aarch64
   check-manifest-suite: ubuntu-22.04-arm64
diff --git a/scripts/explain_manifest/main.py b/scripts/explain_manifest/main.py
index 1033057d3500..44f9dcc00fc1 100755
--- a/scripts/explain_manifest/main.py
+++ b/scripts/explain_manifest/main.py
@@ -84,9 +84,12 @@ def gather_files(path: str, image: str):
             code = os.system(
                 "ar p %s data.tar.gz | tar -C %s -xz" % (path, t.name))
         elif ext == ".rpm":
-            # GNU cpio and rpm2cpio is needed
+            # rpm2cpio is needed
+            # rpm2archive ships with rpm2cpio on debians
             code = os.system(
-                "rpm2cpio %s | cpio --no-preserve-owner --no-absolute-filenames -idm -D %s" % (path, t.name))
+                """
+                    rpm2archive %s && tar -C %s -xf %s.tgz
+                """ % (path, t.name, path))
         elif ext == ".gz":
             code = os.system("tar -C %s -xf %s" % (t.name, path))