diff --git a/cabal.project b/cabal.project
index f363f3b1c..99adeee01 100644
--- a/cabal.project
+++ b/cabal.project
@@ -7,7 +7,7 @@ constraints: zip +disable-bzip2 +disable-zstd
 source-repository-package
     type: git
     location: https://github.com/simplex-chat/simplexmq.git
-    tag: b686bc0c177af1e232a8e9b4bab4ed487c02eb12
+    tag: 0fa40fbfb0d578499679a2a5f21d7d9d2da20ee3
 
 source-repository-package
     type: git
diff --git a/scripts/nix/sha256map.nix b/scripts/nix/sha256map.nix
index 096e3e837..a63186bc6 100644
--- a/scripts/nix/sha256map.nix
+++ b/scripts/nix/sha256map.nix
@@ -1,5 +1,5 @@
 {
-  "https://github.com/simplex-chat/simplexmq.git"."b686bc0c177af1e232a8e9b4bab4ed487c02eb12" = "1w7af7cqfzcis1gs4hm7frcj15h1ri4sjnm45rh5j5llsm4chvvg";
+  "https://github.com/simplex-chat/simplexmq.git"."0fa40fbfb0d578499679a2a5f21d7d9d2da20ee3" = "116np2msr1pvr5x132aqm5hi5vr2d0gw7y9gfp8q5bi7fb2rdzkh";
   "https://github.com/simplex-chat/direct-sqlcipher.git"."34309410eb2069b029b8fc1872deb1e0db123294" = "0kwkmhyfsn2lixdlgl15smgr1h5gjk7fky6abzh8rng2h5ymnffd";
   "https://github.com/simplex-chat/sqlcipher-simple.git"."5e154a2aeccc33ead6c243ec07195ab673137221" = "1d1gc5wax4vqg0801ajsmx1sbwvd9y7p7b8mmskvqsmpbwgbh0m0";
   "https://github.com/simplex-chat/aeson.git"."3eb66f9a68f103b5f1489382aad89f5712a64db7" = "0kilkx59fl6c3qy3kjczqvm8c3f4n3p0bdk9biyflf51ljnzp4yp";
diff --git a/src/Simplex/Chat.hs b/src/Simplex/Chat.hs
index 4317221f2..afc7dcc77 100644
--- a/src/Simplex/Chat.hs
+++ b/src/Simplex/Chat.hs
@@ -993,9 +993,7 @@ processChatCommand = \case
   QuitChat -> liftIO exitSuccess
   ShowVersion -> pure $ CRVersionInfo versionNumber
   where
-    withChatLock action = do
-      ChatController {chatLock = l, smpAgent = a} <- ask
-      withAgentLock a . withLock l $ action
+    withChatLock action = asks chatLock >>= (`withLock` action)
     -- below code would make command responses asynchronous where they can be slow
     -- in View.hs `r'` should be defined as `id` in this case
     -- procCmd :: m ChatResponse -> m ChatResponse
@@ -1377,10 +1375,8 @@ subscribeUserConnections agentBatchSubscribe user = do
         void . forkIO $ do
           threadDelay 1000000
           l <- asks chatLock
-          a <- asks smpAgent
-          when (fileStatus == FSConnected) . unlessM (isFileActive fileId sndFiles) $
-            withAgentLock a . withLock l $
-              sendFileChunk user ft
+          when (fileStatus == FSConnected) . unlessM (isFileActive fileId sndFiles) . withLock l $
+            sendFileChunk user ft
     rcvFileSubsToView :: Map ConnId (Either AgentErrorType ()) -> Map ConnId RcvFileTransfer -> m ()
     rcvFileSubsToView rs = mapM_ (toView . uncurry CRRcvFileSubError) . filterErrors . resultsFor rs
     pendingConnSubsToView :: Map ConnId (Either AgentErrorType ()) -> Map ConnId PendingContactConnection -> m ()
diff --git a/stack.yaml b/stack.yaml
index 9da8993bd..848d0f4af 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -49,7 +49,7 @@ extra-deps:
   # - simplexmq-1.0.0@sha256:34b2004728ae396e3ae449cd090ba7410781e2b3cefc59259915f4ca5daa9ea8,8561
   # - ../simplexmq
   - github: simplex-chat/simplexmq
-    commit: b686bc0c177af1e232a8e9b4bab4ed487c02eb12
+    commit: 0fa40fbfb0d578499679a2a5f21d7d9d2da20ee3
   # - ../direct-sqlcipher
   - github: simplex-chat/direct-sqlcipher
     commit: 34309410eb2069b029b8fc1872deb1e0db123294