diff --git a/package.yaml b/package.yaml
index b68489751..5727ad9c0 100644
--- a/package.yaml
+++ b/package.yaml
@@ -1,5 +1,5 @@
 name: simplexmq
-version: 3.3.0
+version: 3.3.1
 synopsis: SimpleXMQ message broker
 description: |
   This package includes <./docs/Simplex-Messaging-Server.html server>,
diff --git a/simplexmq.cabal b/simplexmq.cabal
index cb39de6e9..f50088fe1 100644
--- a/simplexmq.cabal
+++ b/simplexmq.cabal
@@ -5,7 +5,7 @@ cabal-version: 1.12
 -- see: https://github.com/sol/hpack
 
 name:           simplexmq
-version:        3.3.0
+version:        3.3.1
 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/Transport.hs b/src/Simplex/Messaging/Transport.hs
index a012c5c9a..f95979208 100644
--- a/src/Simplex/Messaging/Transport.hs
+++ b/src/Simplex/Messaging/Transport.hs
@@ -99,7 +99,7 @@ supportedSMPServerVRange :: VersionRange
 supportedSMPServerVRange = mkVersionRange 1 4
 
 simplexMQVersion :: String
-simplexMQVersion = "3.3.0"
+simplexMQVersion = "3.3.1"
 
 -- * Transport connection class