diff --git a/fetch-indexes b/fetch-indexes
index 1a86750..39ad300 100755
--- a/fetch-indexes
+++ b/fetch-indexes
@@ -158,4 +158,4 @@ done < candidates;
 rm candidates;
 
 echo "Run the grim reaper..."
-./grim-reaper
+./grim-reaper $RELEASE
diff --git a/grim-reaper b/grim-reaper
index 375762f..cb97f21 100755
--- a/grim-reaper
+++ b/grim-reaper
@@ -15,6 +15,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
+import argparse
 from concurrent.futures import ThreadPoolExecutor, as_completed
 from datetime import datetime, timedelta
 from launchpadlib.launchpad import Launchpad
@@ -28,11 +29,16 @@ def print_log(string):
     time_elapsed = now - old_now
     print(f"[{now}] (took {time_elapsed}) {string}")
 
+parser = argparse.ArgumentParser()
+parser.add_argument("release")
+args = parser.parse_args()
+
 print(f"[{now}] Logging into Launchpad...")
 launchpad = Launchpad.login_with("grim-reaper", "production", version="devel")
 
 print_log("Logged in. Initializing repositories...")
 ubuntu = launchpad.distributions["ubuntu"]
+series = ubuntu.getSeries(name_or_version=args.release)
 lubuntu_ci = launchpad.people["lubuntu-ci"]
 regular = lubuntu_ci.getPPAByName(distribution=ubuntu, name="unstable-ci")
 proposed = lubuntu_ci.getPPAByName(distribution=ubuntu, name="unstable-ci-proposed")
@@ -40,16 +46,17 @@ proposed = lubuntu_ci.getPPAByName(distribution=ubuntu, name="unstable-ci-propos
 print_log("IS THAT THE GRIM REAPER?!?!?!?!!!")
 
 # Fetch packages once
-two_weeks_ago = datetime.now() - timedelta(days=14)
-packages = [proposed.getPublishedSources(status="Superseded"), regular.getPublishedSources(status="Superseded")]
-total_removals = sum(len(packageset) for packageset in packages)
+packages = []
+for repository in [proposed, regular]:
+    packages.append(repository.getPublishedSources(status="Superseded", distro_series=series))
+total_removals = sum(len(repository) for repository in packages)
 
 print_log(f"Total packages to remove: {total_removals}")
 current_package = 1
 current_percentage = 0
-for packageset in packages:
-    for pkg in packageset:
-        # Cancel all running builds for the package:
+for repository in packages:
+    for pkg in repository:
+        # Cancel all running builds for the package
         for build in pkg.getBuilds():
             if build.buildstate in ["Currently building", "Needs building"]:
                 # Only cancel the build if we can