diff --git a/simplexmq.cabal b/simplexmq.cabal
index 40da60b49..b597f5e47 100644
--- a/simplexmq.cabal
+++ b/simplexmq.cabal
@@ -1,7 +1,7 @@
 cabal-version: 1.12
 
 name:           simplexmq
-version:        6.3.0.5
+version:        6.3.0.503
 synopsis:       SimpleXMQ message broker
 description:    This package includes <./docs/Simplex-Messaging-Server.html server>,
                 <./docs/Simplex-Messaging-Client.html client> and
diff --git a/src/Simplex/Messaging/Server/Env/STM.hs b/src/Simplex/Messaging/Server/Env/STM.hs
index 58d57a4c5..c6190bccc 100644
--- a/src/Simplex/Messaging/Server/Env/STM.hs
+++ b/src/Simplex/Messaging/Server/Env/STM.hs
@@ -162,7 +162,7 @@ defaultMaxJournalMsgCount :: Int
 defaultMaxJournalMsgCount = 256
 
 defaultMsgQueueQuota :: Int
-defaultMsgQueueQuota = 128
+defaultMsgQueueQuota = 4 -- 128
 
 defaultStateTailSize :: Int
 defaultStateTailSize = 512
@@ -367,7 +367,7 @@ mkJournalStoreConfig storePath msgQueueQuota maxJournalMsgCount maxJournalStateL
       maxStateLines = maxJournalStateLines,
       stateTailSize = defaultStateTailSize,
       idleInterval = idleQueueInterval,
-      expireBackupsAfter = 14 * nominalDay,
+      expireBackupsAfter = 300, -- 14 * nominalDay,
       keepMinBackups = 2
     }