diff --git a/.docker/qgis-linux/Dockerfile b/.docker/qgis-linux/Dockerfile
index cb3fa01..64fe59c 100644
--- a/.docker/qgis-linux/Dockerfile
+++ b/.docker/qgis-linux/Dockerfile
@@ -28,6 +28,7 @@ RUN dnf -y install \
     libspatialite-devel \
     protobuf-lite-devel \
     libpq-devel \
+    libzstd-devel \
     qt5-qtwebview-devel
 
 
diff --git a/.docker/qt-ndk/Dockerfile b/.docker/qt-ndk/Dockerfile
index 2281c22..9f92f88 100644
--- a/.docker/qt-ndk/Dockerfile
+++ b/.docker/qt-ndk/Dockerfile
@@ -83,6 +83,7 @@ RUN /tmp/qt/install-qt.sh --version ${QT_VERSION} --target android --directory "
       qttools \
       qtsvg \
       qtwebview \
+      qtconnectivity \
       qtcharts
 
 # Download & unpack android SDK
diff --git a/qt_version.txt b/qt_version.txt
index 222951c..f486c6c 100644
--- a/qt_version.txt
+++ b/qt_version.txt
@@ -1 +1 @@
-5.14.2
+5.15.2
diff --git a/recipes/libzstd/recipe.sh b/recipes/libzstd/recipe.sh
new file mode 100644
index 0000000..8ce4831
--- /dev/null
+++ b/recipes/libzstd/recipe.sh
@@ -0,0 +1,59 @@
+#!/bin/bash
+
+# version of your package
+VERSION_libzstd=v1.4.5
+
+# dependencies of this recipe
+DEPS_libzstd=()
+
+# url of the package
+URL_libzstd=https://github.com/facebook/zstd/archive/${VERSION_libzstd}.zip
+
+# md5 of the package
+MD5_libzstd=beb47f4f92ef69d28400be661cf95c20
+
+# default build path
+BUILD_libzstd=$BUILD_PATH/libzstd/$(get_directory $URL_libzstd)
+
+# default recipe path
+RECIPE_libzstd=$RECIPES_PATH/libzstd
+
+# function called for preparing source code if needed
+# (you can apply patch etc here.)
+function prebuild_libzstd() {
+  cd $BUILD_libzstd
+
+  # check marker
+  if [ -f .patched ]; then
+    return
+  fi
+}
+
+function shouldbuild_libzstd() {
+  # If lib is newer than the sourcecode skip build
+  if [ $BUILD_PATH/libzstd/build-$ARCH/lib/libzstd.so -nt $BUILD_libzstd/.patched ]; then
+    DO_BUILD=0
+  fi
+}
+
+# function called to build the source code
+function build_libzstd() {
+  try mkdir -p $BUILD_PATH/libzstd/build-$ARCH
+  try cd $BUILD_PATH/libzstd/build-$ARCH
+  push_arm
+
+  # configure
+  try $CMAKECMD \
+  -DCMAKE_INSTALL_PREFIX:PATH=$STAGE_PATH \
+  $BUILD_libzstd/build/cmake/
+
+  # try $MAKESMP
+  try $MAKESMP install
+
+  pop_arm
+}
+
+# function called after all the compile have been done
+function postbuild_libzstd() {
+	true
+}
diff --git a/recipes/qgis/recipe.sh b/recipes/qgis/recipe.sh
index f691c3e..ae6acac 100755
--- a/recipes/qgis/recipe.sh
+++ b/recipes/qgis/recipe.sh
@@ -4,14 +4,14 @@
 VERSION_qgis=3.13
 
 # dependencies of this recipe
-DEPS_qgis=(zlib gdal qca libspatialite libspatialindex expat gsl postgresql libzip qtkeychain exiv2 protobuf)
+DEPS_qgis=(zlib gdal qca libspatialite libspatialindex expat gsl postgresql libzip qtkeychain exiv2 protobuf libzstd)
 # DEPS_qgis=()
 
 # url of the package
-URL_qgis=https://github.com/qgis/QGIS/archive/43b64b13f38cd032778591f28d426dd5261fe078.tar.gz
+URL_qgis=https://github.com/qgis/QGIS/archive/df28e637cdddc0c6e93355a9f98ad2d12d9e6acc.tar.gz
 
 # md5 of the package
-MD5_qgis=4917f14aeda73aed420e51221da84bf2
+MD5_qgis=21f1d8d6e5ccae77ba1baa323155e1d4
 
 # default build path
 BUILD_qgis=$BUILD_PATH/qgis/$(get_directory $URL_qgis)