diff --git a/cabal.project b/cabal.project
index 026f963f7a..7190c6183b 100644
--- a/cabal.project
+++ b/cabal.project
@@ -9,7 +9,7 @@ constraints: zip +disable-bzip2 +disable-zstd
 source-repository-package
     type: git
     location: https://github.com/simplex-chat/simplexmq.git
-    tag: 90a8fc91d35c578c3b52ad296a6f1df715da2278
+    tag: 6bffcc8503e5193d57e543ac0100712a8e27d454
 
 source-repository-package
     type: git
@@ -45,3 +45,8 @@ source-repository-package
     type: git
     location: https://github.com/simplex-chat/android-support.git
     tag: 9aa09f148089d6752ce563b14c2df1895718d806
+
+source-repository-package
+    type: git
+    location: https://github.com/simplex-chat/network-transport.git
+    tag: 0013798272a683e35ca38d2fdaf480942311fba8
diff --git a/package.yaml b/package.yaml
index 7c828ed7d5..145b178c47 100644
--- a/package.yaml
+++ b/package.yaml
@@ -32,10 +32,10 @@ dependencies:
   - filepath == 1.4.*
   - http-types == 0.12.*
   - http2 >= 4.2.2 && < 4.3
-  - memory >= 0.15 && < 0.19
-  - mtl >= 2.2 && < 3
+  - memory == 0.18.*
+  - mtl == 2.3.*
   - network >= 3.1.2.7 && < 3.2
-  - network-transport >= 0.5.6 && < 0.6
+  - network-transport == 0.5.6
   - optparse-applicative >= 0.15 && < 0.17
   - process == 1.6.*
   - random >= 1.1 && < 1.3
@@ -45,14 +45,14 @@ dependencies:
   - socks == 0.6.*
   - sqlcipher-simple == 0.4.*
   - stm == 2.5.*
-  - template-haskell >= 2.16 && < 2.21
+  - template-haskell == 2.20.*
   - terminal == 0.2.*
-  - text >= 2.0 && < 3
+  - text == 2.0.*
   - time == 1.9.*
   - tls >= 1.6.0 && < 1.7
   - unliftio == 0.2.*
   - unliftio-core == 0.2.*
-  - zip >= 1.7 && < 2.1
+  - zip == 2.0.*
 
 flags:
   swift:
diff --git a/scripts/nix/sha256map.nix b/scripts/nix/sha256map.nix
index 15a4b04ec1..004187e88c 100644
--- a/scripts/nix/sha256map.nix
+++ b/scripts/nix/sha256map.nix
@@ -1,5 +1,5 @@
 {
-  "https://github.com/simplex-chat/simplexmq.git"."90a8fc91d35c578c3b52ad296a6f1df715da2278" = "1yjixh6b2s1law3kh885fsbr1inv1r7iy4g9g2bn6j4ygdn8vlzy";
+  "https://github.com/simplex-chat/simplexmq.git"."6bffcc8503e5193d57e543ac0100712a8e27d454" = "131kdcvh01985lnf4azss4rg7swpjjh647c29m95b33hd1f7mf17";
   "https://github.com/simplex-chat/hs-socks.git"."a30cc7a79a08d8108316094f8f2f82a0c5e1ac51" = "0yasvnr7g91k76mjkamvzab2kvlb1g5pspjyjn2fr6v83swjhj38";
   "https://github.com/kazu-yamamoto/http2.git"."f5525b755ff2418e6e6ecc69e877363b0d0bcaeb" = "0fyx0047gvhm99ilp212mmz37j84cwrfnpmssib5dw363fyb88b6";
   "https://github.com/simplex-chat/direct-sqlcipher.git"."f814ee68b16a9447fbb467ccc8f29bdd3546bfd9" = "1ql13f4kfwkbaq7nygkxgw84213i0zm7c1a8hwvramayxl38dq5d";
@@ -7,4 +7,5 @@
   "https://github.com/simplex-chat/aeson.git"."aab7b5a14d6c5ea64c64dcaee418de1bb00dcc2b" = "0jz7kda8gai893vyvj96fy962ncv8dcsx71fbddyy8zrvc88jfrr";
   "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/network-transport.git"."0013798272a683e35ca38d2fdaf480942311fba8" = "0dnn62apgvc248df0m8ib7phrzn63wm0xs71xvlypv52j6cgwzkb";
 }
diff --git a/simplex-chat.cabal b/simplex-chat.cabal
index 6f7e61eda8..18b5da39a4 100644
--- a/simplex-chat.cabal
+++ b/simplex-chat.cabal
@@ -184,10 +184,10 @@ library
     , filepath ==1.4.*
     , http-types ==0.12.*
     , http2 >=4.2.2 && <4.3
-    , memory >=0.15 && <0.19
-    , mtl >=2.2 && <3
+    , memory ==0.18.*
+    , mtl ==2.3.*
     , network >=3.1.2.7 && <3.2
-    , network-transport >=0.5.6 && <0.6
+    , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
     , process ==1.6.*
     , random >=1.1 && <1.3
@@ -197,14 +197,14 @@ library
     , socks ==0.6.*
     , sqlcipher-simple ==0.4.*
     , stm ==2.5.*
-    , template-haskell >=2.16 && <2.21
+    , template-haskell ==2.20.*
     , terminal ==0.2.*
-    , text >=2.0 && <3
+    , text ==2.0.*
     , time ==1.9.*
     , tls >=1.6.0 && <1.7
     , unliftio ==0.2.*
     , unliftio-core ==0.2.*
-    , zip >=1.7 && <2.1
+    , zip ==2.0.*
   default-language: Haskell2010
   if flag(swift)
     cpp-options: -DswiftJSON
@@ -236,10 +236,10 @@ executable simplex-bot
     , filepath ==1.4.*
     , http-types ==0.12.*
     , http2 >=4.2.2 && <4.3
-    , memory >=0.15 && <0.19
-    , mtl >=2.2 && <3
+    , memory ==0.18.*
+    , mtl ==2.3.*
     , network >=3.1.2.7 && <3.2
-    , network-transport >=0.5.6 && <0.6
+    , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
     , process ==1.6.*
     , random >=1.1 && <1.3
@@ -250,14 +250,14 @@ executable simplex-bot
     , socks ==0.6.*
     , sqlcipher-simple ==0.4.*
     , stm ==2.5.*
-    , template-haskell >=2.16 && <2.21
+    , template-haskell ==2.20.*
     , terminal ==0.2.*
-    , text >=2.0 && <3
+    , text ==2.0.*
     , time ==1.9.*
     , tls >=1.6.0 && <1.7
     , unliftio ==0.2.*
     , unliftio-core ==0.2.*
-    , zip >=1.7 && <2.1
+    , zip ==2.0.*
   default-language: Haskell2010
   if flag(swift)
     cpp-options: -DswiftJSON
@@ -289,10 +289,10 @@ executable simplex-bot-advanced
     , filepath ==1.4.*
     , http-types ==0.12.*
     , http2 >=4.2.2 && <4.3
-    , memory >=0.15 && <0.19
-    , mtl >=2.2 && <3
+    , memory ==0.18.*
+    , mtl ==2.3.*
     , network >=3.1.2.7 && <3.2
-    , network-transport >=0.5.6 && <0.6
+    , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
     , process ==1.6.*
     , random >=1.1 && <1.3
@@ -303,14 +303,14 @@ executable simplex-bot-advanced
     , socks ==0.6.*
     , sqlcipher-simple ==0.4.*
     , stm ==2.5.*
-    , template-haskell >=2.16 && <2.21
+    , template-haskell ==2.20.*
     , terminal ==0.2.*
-    , text >=2.0 && <3
+    , text ==2.0.*
     , time ==1.9.*
     , tls >=1.6.0 && <1.7
     , unliftio ==0.2.*
     , unliftio-core ==0.2.*
-    , zip >=1.7 && <2.1
+    , zip ==2.0.*
   default-language: Haskell2010
   if flag(swift)
     cpp-options: -DswiftJSON
@@ -344,10 +344,10 @@ executable simplex-broadcast-bot
     , filepath ==1.4.*
     , http-types ==0.12.*
     , http2 >=4.2.2 && <4.3
-    , memory >=0.15 && <0.19
-    , mtl >=2.2 && <3
+    , memory ==0.18.*
+    , mtl ==2.3.*
     , network >=3.1.2.7 && <3.2
-    , network-transport >=0.5.6 && <0.6
+    , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
     , process ==1.6.*
     , random >=1.1 && <1.3
@@ -358,14 +358,14 @@ executable simplex-broadcast-bot
     , socks ==0.6.*
     , sqlcipher-simple ==0.4.*
     , stm ==2.5.*
-    , template-haskell >=2.16 && <2.21
+    , template-haskell ==2.20.*
     , terminal ==0.2.*
-    , text >=2.0 && <3
+    , text ==2.0.*
     , time ==1.9.*
     , tls >=1.6.0 && <1.7
     , unliftio ==0.2.*
     , unliftio-core ==0.2.*
-    , zip >=1.7 && <2.1
+    , zip ==2.0.*
   default-language: Haskell2010
   if flag(swift)
     cpp-options: -DswiftJSON
@@ -398,10 +398,10 @@ executable simplex-chat
     , filepath ==1.4.*
     , http-types ==0.12.*
     , http2 >=4.2.2 && <4.3
-    , memory >=0.15 && <0.19
-    , mtl >=2.2 && <3
+    , memory ==0.18.*
+    , mtl ==2.3.*
     , network ==3.1.*
-    , network-transport >=0.5.6 && <0.6
+    , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
     , process ==1.6.*
     , random >=1.1 && <1.3
@@ -412,15 +412,15 @@ executable simplex-chat
     , socks ==0.6.*
     , sqlcipher-simple ==0.4.*
     , stm ==2.5.*
-    , template-haskell >=2.16 && <2.21
+    , template-haskell ==2.20.*
     , terminal ==0.2.*
-    , text >=2.0 && <3
+    , text ==2.0.*
     , time ==1.9.*
     , tls >=1.6.0 && <1.7
     , unliftio ==0.2.*
     , unliftio-core ==0.2.*
     , websockets ==0.12.*
-    , zip >=1.7 && <2.1
+    , zip ==2.0.*
   default-language: Haskell2010
   if flag(swift)
     cpp-options: -DswiftJSON
@@ -456,10 +456,10 @@ executable simplex-directory-service
     , filepath ==1.4.*
     , http-types ==0.12.*
     , http2 >=4.2.2 && <4.3
-    , memory >=0.15 && <0.19
-    , mtl >=2.2 && <3
+    , memory ==0.18.*
+    , mtl ==2.3.*
     , network >=3.1.2.7 && <3.2
-    , network-transport >=0.5.6 && <0.6
+    , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
     , process ==1.6.*
     , random >=1.1 && <1.3
@@ -470,14 +470,14 @@ executable simplex-directory-service
     , socks ==0.6.*
     , sqlcipher-simple ==0.4.*
     , stm ==2.5.*
-    , template-haskell >=2.16 && <2.21
+    , template-haskell ==2.20.*
     , terminal ==0.2.*
-    , text >=2.0 && <3
+    , text ==2.0.*
     , time ==1.9.*
     , tls >=1.6.0 && <1.7
     , unliftio ==0.2.*
     , unliftio-core ==0.2.*
-    , zip >=1.7 && <2.1
+    , zip ==2.0.*
   default-language: Haskell2010
   if flag(swift)
     cpp-options: -DswiftJSON
@@ -540,10 +540,10 @@ test-suite simplex-chat-test
     , hspec ==2.11.*
     , http-types ==0.12.*
     , http2 >=4.2.2 && <4.3
-    , memory >=0.15 && <0.19
-    , mtl >=2.2 && <3
+    , memory ==0.18.*
+    , mtl ==2.3.*
     , network ==3.1.*
-    , network-transport >=0.5.6 && <0.6
+    , network-transport ==0.5.6
     , optparse-applicative >=0.15 && <0.17
     , process ==1.6.*
     , random >=1.1 && <1.3
@@ -555,14 +555,14 @@ test-suite simplex-chat-test
     , socks ==0.6.*
     , sqlcipher-simple ==0.4.*
     , stm ==2.5.*
-    , template-haskell >=2.16 && <2.21
+    , template-haskell ==2.20.*
     , terminal ==0.2.*
-    , text >=2.0 && <3
+    , text ==2.0.*
     , time ==1.9.*
     , tls >=1.6.0 && <1.7
     , unliftio ==0.2.*
     , unliftio-core ==0.2.*
-    , zip >=1.7 && <2.1
+    , zip ==2.0.*
   default-language: Haskell2010
   if flag(swift)
     cpp-options: -DswiftJSON
diff --git a/stack.yaml b/stack.yaml
index 2866c9bfa0..66e89de6fd 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: 90a8fc91d35c578c3b52ad296a6f1df715da2278
+    commit: 6bffcc8503e5193d57e543ac0100712a8e27d454
   - github: kazu-yamamoto/http2
     commit: f5525b755ff2418e6e6ecc69e877363b0d0bcaeb
   # - ../direct-sqlcipher
@@ -65,6 +65,8 @@ extra-deps:
     commit: f708b00009b54890172068f168bf98508ffcd495
   - github: simplex-chat/android-support
     commit: 9aa09f148089d6752ce563b14c2df1895718d806
+  - github: simplex-chat/network-transport
+    commit: 0013798272a683e35ca38d2fdaf480942311fba8
 #
 # extra-deps: []