diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b89f6ccce0..4e5050fe8f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -637,7 +637,8 @@ jobs:
             toolchain:p
             cmake:p
 
-      # rm -rf dist-newstyle/src/direct-sq* is here because of the bug in cabal's dependency which prevents second build from finishing
+      # rm -rf dist-newstyle/src/{direct-sq,simplexmq}* is here because of the bug in cabal's dependency which prevents second build from finishing
+      # (simplexmq is removed because cabal cannot delete its read-only git submodule pack files - blst, libbbs - on Windows)
       - name: Build CLI
         id: windows_cli_build
         shell: msys2 {0}
@@ -652,10 +653,10 @@ jobs:
           echo "    extra-include-dirs: $openssl_windows_style_path\include" >> cabal.project.local
           echo "    extra-lib-dirs: $openssl_windows_style_path" >> cabal.project.local
 
-          rm -rf dist-newstyle/src/direct-sq*
+          rm -rf dist-newstyle/src/direct-sq* dist-newstyle/src/simplexmq*
           sed -i "s/, unix /--, unix /" simplex-chat.cabal
           cabal build -j --enable-tests
-          rm -rf dist-newstyle/src/direct-sq*
+          rm -rf dist-newstyle/src/direct-sq* dist-newstyle/src/simplexmq*
           path=$(cabal list-bin simplex-chat | tail -n 1)
           echo "bin_path=$path" >> $GITHUB_OUTPUT
           echo "bin_hash=$(echo SHA2-256\(${{ matrix.cli_asset_name }}\)= $(openssl sha256 $path | cut -d' ' -f 2))" >> $GITHUB_OUTPUT
@@ -679,7 +680,7 @@ jobs:
           scripts/desktop/build-lib-windows.sh
           cd apps/multiplatform
           ./gradlew -Psimplex.assets.dir=../../assets packageMsi
-          rm -rf dist-newstyle/src/direct-sq*
+          rm -rf dist-newstyle/src/direct-sq* dist-newstyle/src/simplexmq*
           path=$(echo $PWD/release/main/msi/*imple*.msi | sed 's#/\([a-z]\)#\1:#' | sed 's#/#\\#g')
           echo "package_path=$path" >> $GITHUB_OUTPUT
           echo "package_hash=$(echo SHA2-256\(${{ matrix.desktop_asset_name }}\)= $(openssl sha256 $path | cut -d' ' -f 2))" >> $GITHUB_OUTPUT
diff --git a/cabal.project b/cabal.project
index 1c7d56ae17..66356aa56e 100644
--- a/cabal.project
+++ b/cabal.project
@@ -21,7 +21,7 @@ constraints: zip +disable-bzip2 +disable-zstd
 source-repository-package
     type: git
     location: https://github.com/simplex-chat/simplexmq.git
-    tag: 8e0b8de529bcfee3d9c9a8c28b3a039a4644e9ae
+    tag: df6c53f830853c4cec4c530fe4366f6e7c02e527
 
 source-repository-package
     type: git
diff --git a/scripts/nix/sha256map.nix b/scripts/nix/sha256map.nix
index f03c6071c4..08d0e8abf6 100644
--- a/scripts/nix/sha256map.nix
+++ b/scripts/nix/sha256map.nix
@@ -1,5 +1,5 @@
 {
-  "https://github.com/simplex-chat/simplexmq.git"."8e0b8de529bcfee3d9c9a8c28b3a039a4644e9ae" = "087s8jrl6237sh7r9c033s19fh600kp7ii350zi833i1fc349w8z";
+  "https://github.com/simplex-chat/simplexmq.git"."df6c53f830853c4cec4c530fe4366f6e7c02e527" = "0xxbs8n0976c75p72pgkixa97isapb9r02xyflmvj8gnmxw4ilay";
   "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";