diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [1.7.8] - 2025-04-09
+
+### Fixed
+
+- increase queue sizes to handle larger workloads
+
 ## [1.7.7] - 2025-03-15
 
 ### Fixed
diff --git a/cachix.cabal b/cachix.cabal
--- a/cachix.cabal
+++ b/cachix.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.2
 name:               cachix
-version:            1.7.7
+version:            1.7.8
 synopsis:
   Command-line client for Nix binary cache hosting https://cachix.org
 
diff --git a/src/Cachix/Client/PushQueue.hs b/src/Cachix/Client/PushQueue.hs
--- a/src/Cachix/Client/PushQueue.hs
+++ b/src/Cachix/Client/PushQueue.hs
@@ -60,7 +60,7 @@
   -- start query worker
   (newQueryQueue, newPushQueue, newLock) <-
     atomically $
-      (,,) <$> TBQueue.newTBQueue 10000 <*> TBQueue.newTBQueue 10000 <*> Lock.new
+      (,,) <$> TBQueue.newTBQueue 100_000 <*> TBQueue.newTBQueue 100_000 <*> Lock.new
   let queryWorkerState = QueryWorkerState newQueryQueue S.empty newLock
   queryWorker <- async $ queryLoop queryWorkerState newPushQueue pushParams
 
diff --git a/src/Cachix/Daemon/PushManager.hs b/src/Cachix/Daemon/PushManager.hs
--- a/src/Cachix/Daemon/PushManager.hs
+++ b/src/Cachix/Daemon/PushManager.hs
@@ -80,7 +80,7 @@
   pmPushJobs <- newTVarIO mempty
   pmPendingJobCount <- newTVarIO 0
   pmStorePathIndex <- newTVarIO mempty
-  pmTaskQueue <- newTBMQueueIO 1000
+  pmTaskQueue <- newTBMQueueIO 100_000
   pmTaskSemaphore <- QSem.newQSem (numJobs pushOptions)
   pmLastEventTimestamp <- newTVarIO =<< getCurrentTime
   let pmOnPushEvent id pushEvent = updateTimestampTVar pmLastEventTimestamp >> onPushEvent id pushEvent