diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 67affd34..2b0777fd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,13 +11,13 @@ build-gcc7:
   variables:
     CXX: g++-7
     CC: gcc-7
-    QT_PKG: 512
+    QT_PKG: 515
     TRAVIS_OS_NAME: linux
   before_script:
     - apt-get update
     - apt-get install -y software-properties-common
     - add-apt-repository ppa:ubuntu-toolchain-r/test -y
-    - add-apt-repository ppa:beineri/opt-qt-5.12.9-xenial -y
+    - add-apt-repository ppa:beineri/opt-qt-5.15.2-xenial -y
     - apt-get update && apt-get -y install --no-install-recommends g++-7 build-essential ninja-build qt${QT_PKG}{base,declarative,tools,multimedia,script,quickcontrols2,svg} liblmdb-dev libgl1-mesa-dev libssl-dev git ccache
     # need recommended deps for wget
     - apt-get -y install wget
@@ -157,22 +157,24 @@ appimage-amd64:
   stage: build
   image: appimagecrafters/appimage-builder
   tags: [docker]
+  variables:
+    QT_PKG: 515
   before_script:
     # app build requirements
-    - echo 'deb http://archive.neon.kde.org/user/ bionic main' > /etc/apt/sources.list.d/neon.list
-    - wget -qO - https://archive.neon.kde.org/public.key | apt-key add -
+    - add-apt-repository ppa:beineri/opt-qt-5.15.2-xenial -y
     - apt-get update
     - apt-get install -y git wget curl
 
     # update appimage-builder (optional)
     - pip3 install --upgrade git+https://www.opencode.net/azubieta/appimagecraft.git
 
-    - apt-get install -y qt5-default qtdeclarative5-dev qttools5-dev qtscript5-dev qtquickcontrols2-5-dev qtmultimedia5-dev libqt5svg5-dev liblmdb-dev libssl-dev git ninja-build qt5keychain-dev libgtest-dev ccache libevent-dev libcurl4-openssl-dev
+    - apt-get update && apt-get -y install --no-install-recommends g++-7 build-essential ninja-build qt${QT_PKG}{base,declarative,tools,multimedia,script,quickcontrols2,svg} liblmdb-dev libssl-dev git ninja-build qt5keychain-dev libgtest-dev ccache libevent-dev libcurl4-openssl-dev
     - wget https://github.com/Kitware/CMake/releases/download/v3.19.0/cmake-3.19.0-Linux-x86_64.sh && sh cmake-3.19.0-Linux-x86_64.sh  --skip-license  --prefix=/usr/local
     - /usr/sbin/update-ccache-symlinks
   script:
     - export PATH="/usr/local/bin/:/usr/lib/ccache:${PATH}"
     - export CMAKE_BUILD_PARALLEL_LEVEL=$(cat /proc/cpuinfo | awk '/^processor/{print $3}' | wc -l)
+    - . "/opt/qt${QT_PKG}/bin/qt${QT_PKG}-env.sh" || true
     - cmake -H. -Bbuild -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr -GNinja
       -DHUNTER_ROOT=".hunter"
       -DHUNTER_ENABLED=ON -DBUILD_SHARED_LIBS=OFF
diff --git a/AppImageBuilder.yml b/AppImageBuilder.yml
index f83ce90a..f4a6513c 100644
--- a/AppImageBuilder.yml
+++ b/AppImageBuilder.yml
@@ -27,7 +27,7 @@ AppDir:
     - sourceline: deb http://security.ubuntu.com/ubuntu bionic-security main restricted
     - sourceline: deb http://security.ubuntu.com/ubuntu bionic-security universe
     - sourceline: deb http://security.ubuntu.com/ubuntu bionic-security multiverse
-    - sourceline: deb http://archive.neon.kde.org/user/ bionic main
+    - sourceline: deb http://ppa.launchpad.net/beineri/opt-qt-5.15.2-bionic/ubuntu bionic main 
     include:
     - gstreamer1.0-libav
     - gstreamer1.0-plugins-bad
@@ -54,13 +54,13 @@ AppDir:
     - libopenexr22
     - libpcre3
     - libqt5keychain1
-    - libqt5multimedia5-plugins
-    - libqt5multimediagsttools5
-    - libqt5multimediawidgets5
-    - libqt5quickcontrols2-5
-    - libqt5quicktemplates2-5
-    - libqt5quickwidgets5
-    - libqt5svg5
+    - qt515base
+    - qt515declarative
+    - qt515tools
+    - qt515multimedia
+    - qt515script
+    - qt515quickcontrols2
+    - qt515svg
     - librubberband2
     - libsensors4
     - libsm6
@@ -82,15 +82,7 @@ AppDir:
     - libxv1
     - libxxf86vm1
     - libzstd1
-    - qml-module-qt-labs-platform
-    - qml-module-qtgraphicaleffects
-    - qml-module-qtmultimedia
-    - qml-module-qtquick-controls2
-    - qml-module-qtquick-layouts
-    - qml-module-qtquick-templates2
-    - qml-module-qtquick-window2
-    - qml-module-qtquick2
-    - qt5-image-formats-plugins
+    - qt515imageformats
     exclude: []
   files:
     exclude: