diff --git a/ReleaseNotes.md b/ReleaseNotes.md
index 84b09bed4a02a5b95afebaf9e9a6974bfa5531cf..edac8014f29bc5d934bc7c7febd8bb2fdd95f612 100644
--- a/ReleaseNotes.md
+++ b/ReleaseNotes.md
@@ -12,6 +12,12 @@
 ### Continuous Integration
 - cta/CTA#205 - Updating EOS4/EOS4 in versionlock for v4.8.95/v5.1.5
 
+# v4.8.1-1
+
+## Summary
+### Bug fixes
+- cta/CTA#243 - Modify new queue cleanup protobuf fields from 'required' to 'optional'
+
 # v4.8.0-1
 
 ## Summary
diff --git a/cta.spec.in b/cta.spec.in
index 643179575173605442089b48e52a9b6a7be87637..56cf408e32c1f208bdb7ef04be07f93a131b9141 100644
--- a/cta.spec.in
+++ b/cta.spec.in
@@ -587,10 +587,9 @@ echo $(jq --argjson CTA_MAJOR_VERSION $cta_major_version '. += {"cta_major_versi
 
 
 %changelog
-* Tue Dec 6 2022 Joao Afonso <joao.afonso@cern.ch> - 4.8.1-1
-- Upgrade eos4/eos5 to 4.8.94/5.1.5
-- Minor changes in preparation for next catalogue schema release
-- See ReleaseNotes.md for details
+* Mon Dec 12 2022 Joao Afonso <joao.afonso@cern.ch> - 4.8.1-1
+- Fixes bug with protobuf definition
+- See ReleaseNotes.md for more details
 
 * Mon Nov 28 2022 Joao Afonso <joao.afonso@cern.ch> - 4.8.0-1
 - This CTA release contains significant changes related to repacking, including the addition of new final and temporary states
diff --git a/objectstore/cta.proto b/objectstore/cta.proto
index 9efaed027ab28b73cd0dab7d676de594aa4761c6..eec37589b89cb40678cd0b2925dbe00a9c858f8c 100644
--- a/objectstore/cta.proto
+++ b/objectstore/cta.proto
@@ -547,9 +547,9 @@ message RetrieveActivityCountPair {
 }
 
 message RetrieveQueueCleanupInfo {
-  required bool doCleanup = 14100;
+  optional bool doCleanup = 14100;
   optional string assignedAgent = 14110;
-  required uint64 heartbeat = 14120;
+  optional uint64 heartbeat = 14120;
 }
 
 message RetrieveQueue {
@@ -568,7 +568,7 @@ message RetrieveQueue {
   optional string disk_system_slept_for = 10190;
   optional uint64 sleep_time = 10200;
   optional uint64 youngestjobcreationtime = 10210 [default = 0];
-  required RetrieveQueueCleanupInfo cleanupInfo = 10220;
+  optional RetrieveQueueCleanupInfo cleanupInfo = 10220;
 }
 
 // ------------- Repack data strcutures ----------------------------------------