diff --git a/cabal.project b/cabal.project
index 1eb2be851c..ede8f8be2b 100644
--- a/cabal.project
+++ b/cabal.project
@@ -12,7 +12,7 @@ constraints: zip +disable-bzip2 +disable-zstd
 source-repository-package
     type: git
     location: https://github.com/simplex-chat/simplexmq.git
-    tag: 294d7ec8dde9898b66188a346f6d9d17119763da
+    tag: 246a0d10c22ebe02af2eb34773b77cce10247459
 
 source-repository-package
     type: git
diff --git a/scripts/nix/sha256map.nix b/scripts/nix/sha256map.nix
index d875a2f165..394cf11260 100644
--- a/scripts/nix/sha256map.nix
+++ b/scripts/nix/sha256map.nix
@@ -1,5 +1,5 @@
 {
-  "https://github.com/simplex-chat/simplexmq.git"."294d7ec8dde9898b66188a346f6d9d17119763da" = "06a4rzzc6ky11h6mw7ja5wb7ykq4dgvwa47wlns9wmpvbfqpmxrh";
+  "https://github.com/simplex-chat/simplexmq.git"."246a0d10c22ebe02af2eb34773b77cce10247459" = "0kx5swx1g9jimg7ks008nqzvkyx5x9irjkjwvgwrd3km5g0wnzf4";
   "https://github.com/simplex-chat/hs-socks.git"."a30cc7a79a08d8108316094f8f2f82a0c5e1ac51" = "0yasvnr7g91k76mjkamvzab2kvlb1g5pspjyjn2fr6v83swjhj38";
   "https://github.com/simplex-chat/direct-sqlcipher.git"."f814ee68b16a9447fbb467ccc8f29bdd3546bfd9" = "1ql13f4kfwkbaq7nygkxgw84213i0zm7c1a8hwvramayxl38dq5d";
   "https://github.com/simplex-chat/sqlcipher-simple.git"."a46bd361a19376c5211f1058908fc0ae6bf42446" = "1z0r78d8f0812kxbgsm735qf6xx8lvaz27k1a0b4a2m0sshpd5gl";
diff --git a/src/Simplex/Chat.hs b/src/Simplex/Chat.hs
index c5d8bc8363..2f6eb0c910 100644
--- a/src/Simplex/Chat.hs
+++ b/src/Simplex/Chat.hs
@@ -81,7 +81,7 @@ import Simplex.Chat.Types
 import Simplex.Chat.Types.Preferences
 import Simplex.Chat.Types.Util
 import Simplex.Chat.Util (encryptFile, shuffle)
-import Simplex.FileTransfer.Client.Main (maxFileSize)
+import Simplex.FileTransfer.Client.Main (maxFileSize, maxFileSizeHard)
 import Simplex.FileTransfer.Client.Presets (defaultXFTPServers)
 import Simplex.FileTransfer.Description (FileDescriptionURI (..), ValidFileDescription)
 import qualified Simplex.FileTransfer.Description as FD
@@ -2005,6 +2005,7 @@ processChatCommand' vr = \case
   APIUploadStandaloneFile userId file@CryptoFile {filePath} -> withUserId userId $ \user -> do
     fsFilePath <- toFSFilePath filePath
     fileSize <- liftIO $ CF.getFileContentsSize file {filePath = fsFilePath}
+    when (fileSize > toInteger maxFileSizeHard) $ throwChatError $ CEFileSize filePath
     (_, _, fileTransferMeta) <- xftpSndFileTransfer_ user file fileSize 1 Nothing
     pure CRSndStandaloneFileCreated {user, fileTransferMeta}
   APIDownloadStandaloneFile userId uri file -> withUserId userId $ \user -> do