diff --git a/cabal.project b/cabal.project
index 924f09c9e..011caed1e 100644
--- a/cabal.project
+++ b/cabal.project
@@ -13,7 +13,7 @@ packages: .
    -- coverage: False
    -- library-coverage: False
 
-index-state: 2023-12-12T00:00:00Z
+index-state: 2025-07-01T00:00:00Z
 
 package cryptostore
     flags: +use_crypton
diff --git a/simplexmq.cabal b/simplexmq.cabal
index cdbd72c52..5e436f8db 100644
--- a/simplexmq.cabal
+++ b/simplexmq.cabal
@@ -1,7 +1,7 @@
 cabal-version: 1.12
 
 name:           simplexmq
-version:        6.4.5.0
+version:        6.4.4.1
 synopsis:       SimpleXMQ message broker
 description:    This package includes <./docs/Simplex-Messaging-Server.html server>,
                 <./docs/Simplex-Messaging-Client.html client> and
@@ -319,7 +319,7 @@ library
     , stm ==2.5.*
     , time ==1.12.*
     , time-manager ==0.0.*
-    , tls >=1.9.0 && <1.10
+    , tls ==2.1.8.*
     , transformers ==0.6.*
     , unliftio ==0.2.*
     , unliftio-core ==0.2.*