diff --git a/cabal.project b/cabal.project
index 12879f4c76..486cd97691 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: bfd532e833aff36754ef766f4e021f0079a7f83c
+    tag: 84b8c8417b73af5ee347af6e098d9b3c9190549d
 
 source-repository-package
     type: git
@@ -34,12 +34,6 @@ source-repository-package
     location: https://github.com/simplex-chat/aeson.git
     tag: aab7b5a14d6c5ea64c64dcaee418de1bb00dcc2b
 
--- old bs/text compat for 8.10
-source-repository-package
-    type: git
-    location: https://github.com/simplex-chat/base64.git
-    tag: 2d77b6dbcaffc00570a70be8694049f3710e7c94
-
 source-repository-package
     type: git
     location: https://github.com/simplex-chat/haskell-terminal.git
diff --git a/package.yaml b/package.yaml
index 1f891df76b..22fe922174 100644
--- a/package.yaml
+++ b/package.yaml
@@ -18,6 +18,7 @@ dependencies:
   - async == 2.2.*
   - attoparsec == 0.14.*
   - base >= 4.7 && < 5
+  - base64-bytestring >= 1.0 && < 1.3
   - composition == 1.0.*
   - constraints >= 0.12 && < 0.14
   - containers == 0.6.*
diff --git a/scripts/nix/sha256map.nix b/scripts/nix/sha256map.nix
index 9942f3f4a5..51e503b63c 100644
--- a/scripts/nix/sha256map.nix
+++ b/scripts/nix/sha256map.nix
@@ -1,10 +1,9 @@
 {
-  "https://github.com/simplex-chat/simplexmq.git"."bfd532e833aff36754ef766f4e021f0079a7f83c" = "1xxcdadllimk2hgzz6aggvywr14zm2h0l62c92yvnyvps9j49gdx";
+  "https://github.com/simplex-chat/simplexmq.git"."84b8c8417b73af5ee347af6e098d9b3c9190549d" = "1aaqj83ym2h21py6qqzigzsgplsr5k651q92zilqhmd44h4fwxrm";
   "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";
   "https://github.com/simplex-chat/aeson.git"."aab7b5a14d6c5ea64c64dcaee418de1bb00dcc2b" = "0jz7kda8gai893vyvj96fy962ncv8dcsx71fbddyy8zrvc88jfrr";
-  "https://github.com/simplex-chat/base64.git"."2d77b6dbcaffc00570a70be8694049f3710e7c94" = "0zdskk67fzqrrx1i29s3shp7fh9c0krmq5h6hq03qx0n3xy2m44b";
   "https://github.com/simplex-chat/haskell-terminal.git"."f708b00009b54890172068f168bf98508ffcd495" = "0zmq7lmfsk8m340g47g5963yba7i88n4afa6z93sg9px5jv1mijj";
   "https://github.com/simplex-chat/android-support.git"."9aa09f148089d6752ce563b14c2df1895718d806" = "0pbf2pf13v2kjzi397nr13f1h3jv0imvsq8rpiyy2qyx5vd50pqn";
   "https://github.com/simplex-chat/zip.git"."bd421c6b19cc4c465cd7af1f6f26169fb8ee1ebc" = "1csqfjhvc8wb5h4kxxndmb6iw7b4ib9ff2n81hrizsmnf45a6gg0";
diff --git a/simplex-chat.cabal b/simplex-chat.cabal
index 3ab530e2d9..17ea518309 100644
--- a/simplex-chat.cabal
+++ b/simplex-chat.cabal
@@ -190,6 +190,7 @@ library
     , async ==2.2.*
     , attoparsec ==0.14.*
     , base >=4.7 && <5
+    , base64-bytestring >=1.0 && <1.3
     , composition ==1.0.*
     , constraints >=0.12 && <0.14
     , containers ==0.6.*
@@ -251,6 +252,7 @@ executable simplex-bot
     , async ==2.2.*
     , attoparsec ==0.14.*
     , base >=4.7 && <5
+    , base64-bytestring >=1.0 && <1.3
     , composition ==1.0.*
     , constraints >=0.12 && <0.14
     , containers ==0.6.*
@@ -313,6 +315,7 @@ executable simplex-bot-advanced
     , async ==2.2.*
     , attoparsec ==0.14.*
     , base >=4.7 && <5
+    , base64-bytestring >=1.0 && <1.3
     , composition ==1.0.*
     , constraints >=0.12 && <0.14
     , containers ==0.6.*
@@ -378,6 +381,7 @@ executable simplex-broadcast-bot
     , async ==2.2.*
     , attoparsec ==0.14.*
     , base >=4.7 && <5
+    , base64-bytestring >=1.0 && <1.3
     , composition ==1.0.*
     , constraints >=0.12 && <0.14
     , containers ==0.6.*
@@ -441,6 +445,7 @@ executable simplex-chat
     , async ==2.2.*
     , attoparsec ==0.14.*
     , base >=4.7 && <5
+    , base64-bytestring >=1.0 && <1.3
     , composition ==1.0.*
     , constraints >=0.12 && <0.14
     , containers ==0.6.*
@@ -510,6 +515,7 @@ executable simplex-directory-service
     , async ==2.2.*
     , attoparsec ==0.14.*
     , base >=4.7 && <5
+    , base64-bytestring >=1.0 && <1.3
     , composition ==1.0.*
     , constraints >=0.12 && <0.14
     , containers ==0.6.*
@@ -604,6 +610,7 @@ test-suite simplex-chat-test
     , async ==2.2.*
     , attoparsec ==0.14.*
     , base >=4.7 && <5
+    , base64-bytestring >=1.0 && <1.3
     , composition ==1.0.*
     , constraints >=0.12 && <0.14
     , containers ==0.6.*
diff --git a/src/Simplex/Chat.hs b/src/Simplex/Chat.hs
index 2367294489..7948875180 100644
--- a/src/Simplex/Chat.hs
+++ b/src/Simplex/Chat.hs
@@ -29,6 +29,7 @@ import qualified Data.Attoparsec.ByteString.Char8 as A
 import Data.Bifunctor (bimap, first, second)
 import Data.ByteArray (ScrubbedBytes)
 import qualified Data.ByteArray as BA
+import qualified Data.ByteString.Base64 as B64
 import Data.ByteString.Char8 (ByteString)
 import qualified Data.ByteString.Char8 as B
 import qualified Data.ByteString.Lazy.Char8 as LB
@@ -103,9 +104,8 @@ import qualified Simplex.Messaging.Crypto.File as CF
 import Simplex.Messaging.Crypto.Ratchet (PQEncryption (..), PQSupport (..), pattern IKNoPQ, pattern IKPQOff, pattern PQEncOff, pattern PQEncOn, pattern PQSupportOff, pattern PQSupportOn)
 import qualified Simplex.Messaging.Crypto.Ratchet as CR
 import Simplex.Messaging.Encoding
-import Simplex.Messaging.Encoding.Base64 (base64P)
-import qualified Simplex.Messaging.Encoding.Base64 as B64
 import Simplex.Messaging.Encoding.String
+import Simplex.Messaging.Parsers (base64P)
 import Simplex.Messaging.Protocol (AProtoServerWithAuth (..), AProtocolType (..), EntityId, ErrorType (..), MsgBody, MsgFlags (..), NtfServer, ProtoServerWithAuth, ProtocolTypeI, SProtocolType (..), SubscriptionMode (..), UserProtocol, userProtocol)
 import qualified Simplex.Messaging.Protocol as SMP
 import Simplex.Messaging.ServiceScheme (ServiceScheme (..))
diff --git a/src/Simplex/Chat/Messages.hs b/src/Simplex/Chat/Messages.hs
index c24de3b2e1..b29543cf74 100644
--- a/src/Simplex/Chat/Messages.hs
+++ b/src/Simplex/Chat/Messages.hs
@@ -24,6 +24,7 @@ import qualified Data.Aeson as J
 import qualified Data.Aeson.Encoding as JE
 import qualified Data.Aeson.TH as JQ
 import qualified Data.Attoparsec.ByteString.Char8 as A
+import qualified Data.ByteString.Base64 as B64
 import qualified Data.ByteString.Lazy.Char8 as LB
 import Data.Char (isSpace)
 import Data.Int (Int64)
@@ -47,7 +48,6 @@ import Simplex.Chat.Types.Preferences
 import Simplex.Messaging.Agent.Protocol (AgentMsgId, MsgMeta (..), MsgReceiptStatus (..))
 import Simplex.Messaging.Crypto.File (CryptoFile (..))
 import qualified Simplex.Messaging.Crypto.File as CF
-import qualified Simplex.Messaging.Encoding.Base64 as B64
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Parsers (defaultJSON, dropPrefix, enumJSON, fromTextField_, parseAll, sumTypeJSON)
 import Simplex.Messaging.Protocol (MsgBody)
diff --git a/src/Simplex/Chat/Mobile.hs b/src/Simplex/Chat/Mobile.hs
index 9bc31fa2c7..5883c6042c 100644
--- a/src/Simplex/Chat/Mobile.hs
+++ b/src/Simplex/Chat/Mobile.hs
@@ -17,6 +17,7 @@ import qualified Data.Aeson.TH as JQ
 import Data.Bifunctor (first)
 import Data.ByteArray (ScrubbedBytes)
 import qualified Data.ByteArray as BA
+import qualified Data.ByteString.Base64.URL as U
 import Data.ByteString.Char8 (ByteString)
 import qualified Data.ByteString.Char8 as B
 import qualified Data.ByteString.Lazy.Char8 as LB
@@ -49,7 +50,6 @@ import Simplex.Messaging.Agent.Env.SQLite (createAgentStore)
 import Simplex.Messaging.Agent.Store.SQLite (MigrationConfirmation (..), MigrationError, closeSQLiteStore, reopenSQLiteStore)
 import Simplex.Messaging.Client (defaultNetworkConfig)
 import qualified Simplex.Messaging.Crypto as C
-import qualified Simplex.Messaging.Encoding.Base64.URL as U
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Parsers (defaultJSON, dropPrefix, sumTypeJSON)
 import Simplex.Messaging.Protocol (AProtoServerWithAuth (..), AProtocolType (..), BasicAuth (..), CorrId (..), ProtoServerWithAuth (..), ProtocolServer (..))
diff --git a/src/Simplex/Chat/Mobile/WebRTC.hs b/src/Simplex/Chat/Mobile/WebRTC.hs
index b69203b651..537388b18b 100644
--- a/src/Simplex/Chat/Mobile/WebRTC.hs
+++ b/src/Simplex/Chat/Mobile/WebRTC.hs
@@ -17,6 +17,7 @@ import Data.Bifunctor (bimap)
 import qualified Data.ByteArray as BA
 import Data.ByteString (ByteString)
 import qualified Data.ByteString as B
+import qualified Data.ByteString.Base64.URL as U
 import Data.Either (fromLeft)
 import Data.Word (Word8)
 import Foreign.C (CInt, CString, newCAString)
@@ -25,7 +26,6 @@ import Foreign.StablePtr
 import Simplex.Chat.Controller (ChatController (..))
 import Simplex.Chat.Mobile.Shared
 import qualified Simplex.Messaging.Crypto as C
-import qualified Simplex.Messaging.Encoding.Base64.URL as U
 import UnliftIO (atomically)
 
 cChatEncryptMedia :: StablePtr ChatController -> CString -> Ptr Word8 -> CInt -> IO CString
diff --git a/src/Simplex/Chat/Remote.hs b/src/Simplex/Chat/Remote.hs
index 416b88599c..819c1cd670 100644
--- a/src/Simplex/Chat/Remote.hs
+++ b/src/Simplex/Chat/Remote.hs
@@ -22,6 +22,7 @@ import Crypto.Random (getRandomBytes)
 import qualified Data.Aeson as J
 import qualified Data.Aeson.Types as JT
 import Data.ByteString (ByteString)
+import qualified Data.ByteString.Base64.URL as B64U
 import Data.ByteString.Builder (Builder)
 import qualified Data.ByteString.Char8 as B
 import Data.Functor (($>))
@@ -55,7 +56,6 @@ import Simplex.Messaging.Agent
 import Simplex.Messaging.Agent.Protocol (AgentErrorType (RCP))
 import Simplex.Messaging.Crypto.File (CryptoFile (..), CryptoFileArgs (..))
 import qualified Simplex.Messaging.Crypto.File as CF
-import qualified Simplex.Messaging.Encoding.Base64.URL as B64U
 import Simplex.Messaging.Encoding.String (StrEncoding (..))
 import qualified Simplex.Messaging.TMap as TM
 import Simplex.Messaging.Transport (TLS, closeConnection, tlsUniq)
diff --git a/src/Simplex/Chat/Store/Shared.hs b/src/Simplex/Chat/Store/Shared.hs
index dc75ad50e9..88540134fe 100644
--- a/src/Simplex/Chat/Store/Shared.hs
+++ b/src/Simplex/Chat/Store/Shared.hs
@@ -18,6 +18,7 @@ import Control.Monad.Except
 import Control.Monad.IO.Class
 import Crypto.Random (ChaChaDRG)
 import qualified Data.Aeson.TH as J
+import qualified Data.ByteString.Base64 as B64
 import Data.ByteString.Char8 (ByteString)
 import Data.Int (Int64)
 import Data.Maybe (fromMaybe, isJust, listToMaybe)
@@ -38,7 +39,6 @@ import qualified Simplex.Messaging.Agent.Store.SQLite.DB as DB
 import qualified Simplex.Messaging.Crypto as C
 import Simplex.Messaging.Crypto.Ratchet (PQEncryption (..), PQSupport (..))
 import qualified Simplex.Messaging.Crypto.Ratchet as CR
-import qualified Simplex.Messaging.Encoding.Base64 as B64
 import Simplex.Messaging.Parsers (dropPrefix, sumTypeJSON)
 import Simplex.Messaging.Protocol (SubscriptionMode (..))
 import Simplex.Messaging.Util (allFinally)
diff --git a/tests/ChatTests/Utils.hs b/tests/ChatTests/Utils.hs
index 13812cbaaa..3b0748e7d0 100644
--- a/tests/ChatTests/Utils.hs
+++ b/tests/ChatTests/Utils.hs
@@ -14,6 +14,7 @@ import Control.Concurrent.STM
 import Control.Monad (unless, when)
 import Control.Monad.Except (runExceptT)
 import Data.ByteString (ByteString)
+import qualified Data.ByteString.Base64 as B64
 import qualified Data.ByteString.Char8 as B
 import Data.Char (isDigit)
 import Data.List (isPrefixOf, isSuffixOf)
@@ -34,7 +35,6 @@ import Simplex.Messaging.Agent.Store.SQLite (maybeFirstRow, withTransaction)
 import qualified Simplex.Messaging.Agent.Store.SQLite.DB as DB
 import qualified Simplex.Messaging.Crypto as C
 import Simplex.Messaging.Crypto.Ratchet (PQEncryption (..), PQSupport, pattern PQEncOff, pattern PQEncOn, pattern PQSupportOff)
-import qualified Simplex.Messaging.Encoding.Base64 as B64
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Version
 import System.Directory (doesFileExist)
diff --git a/tests/WebRTCTests.hs b/tests/WebRTCTests.hs
index f2372acc2f..a473afef36 100644
--- a/tests/WebRTCTests.hs
+++ b/tests/WebRTCTests.hs
@@ -4,12 +4,12 @@ module WebRTCTests where
 
 import Control.Monad.Except
 import Crypto.Random (getRandomBytes)
+import qualified Data.ByteString.Base64.URL as U
 import qualified Data.ByteString.Char8 as B
 import Foreign.StablePtr
 import Simplex.Chat.Mobile
 import Simplex.Chat.Mobile.WebRTC
 import qualified Simplex.Messaging.Crypto as C
-import qualified Simplex.Messaging.Encoding.Base64.URL as U
 import System.FilePath ((</>))
 import Test.Hspec
 
@@ -36,8 +36,8 @@ webRTCTests = describe "WebRTC crypto" $ do
     cc <- newStablePtr c
     let key = B.replicate 32 '#'
     frame <- (<> B.replicate reservedSize '\NUL') <$> getRandomBytes 100
-    runExceptT (chatEncryptMedia cc key frame) `shouldReturn` Left "invalid key: invalid base64 encoding near offset: 0"
-    runExceptT (chatDecryptMedia key frame) `shouldReturn` Left "invalid key: invalid base64 encoding near offset: 0"
+    runExceptT (chatEncryptMedia cc key frame) `shouldReturn` Left "invalid key: invalid character at offset: 0"
+    runExceptT (chatDecryptMedia key frame) `shouldReturn` Left "invalid key: invalid character at offset: 0"
   it "should fail on invalid auth tag" $ \tmp -> do
     Right c <- chatMigrateInit (tmp </> "1") "" "yesUp"
     cc <- newStablePtr c