diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ff2f6d30..1c92c6c9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,14 +15,16 @@ jobs:
 
     - name: Install dependencies
       run: |
+        sudo add-apt-repository ppa:beineri/opt-qt-5.15.0-focal
         sudo apt-get update
-        sudo apt-get install -y build-essential gcc-10 g++-10 qt5-default libqt5x11extras5-dev cmake
+        sudo apt-get install -y build-essential gcc-10 g++-10 qt515base qt515x11extras cmake
         sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 100 --slave /usr/bin/g++ g++ /usr/bin/g++-10 --slave /usr/bin/gcov gcov /usr/bin/gcov-10
         git submodule update --init --recursive
 
     - name: Build
       shell: bash
       run: |
+        source /opt/qt515/bin/qt515-env.sh
         mkdir build
         cd build
         cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr ..
@@ -32,6 +34,7 @@ jobs:
     - name: Prepare AppImage
       shell: bash
       run: |
+        source /opt/qt515/bin/qt515-env.sh
         cd build
         wget https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage
         wget https://github.com/linuxdeploy/linuxdeploy-plugin-qt/releases/download/continuous/linuxdeploy-plugin-qt-x86_64.AppImage
@@ -43,6 +46,7 @@ jobs:
         
     - name: Generate AppImage
       run: |
+        source /opt/qt515/bin/qt515-env.sh
         cd build
         LD_LIBRARY_PATH=$PWD/AppDir/usr/lib/x86_64-linux-gnu ./linuxdeploy-x86_64.AppImage --appdir=AppDir --plugin qt --output appimage
         mv REDasm-*.AppImage REDasm_Linux_AMD64_`date +%Y%m%d`.AppImage