diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index bf45cc499..ea2b2f79d 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -59,6 +59,8 @@ jobs:
 
     - name: 'Build project'
       shell: bash
+      env:
+        QT_INSTALL_DIR: ${{ runner.temp }}
       run: ./deploy/build.sh
 
     - name: 'Upload installer artifact'
@@ -425,6 +427,7 @@ jobs:
 
     - name: 'Build project'
       env:
+        QT_INSTALL_DIR: ${{ runner.temp }}
         CODESIGN_KEYCHAIN: ${{ env.KEYCHAIN_NAME }}
         CODESIGN_SIGNATURE: ${{ secrets.MAC_SIGNER_ID }}
         CODESIGN_INSTALLER_KEYCHAIN: ${{ env.KEYCHAIN_NAME }}
diff --git a/deploy/build.sh b/deploy/build.sh
index 511be17ea..b9cb083e9 100755
--- a/deploy/build.sh
+++ b/deploy/build.sh
@@ -4,9 +4,12 @@ set -o errexit
 PROJECT_DIR=$(pwd)
 BUILD_DIR="$PROJECT_DIR/deploy/build"
 
+bases=(~/Qt /opt/Qt)
+[ -n "${QT_INSTALL_DIR}" ] && bases+=("${QT_INSTALL_DIR}/Qt")
+
 qt_folders=()
 qif_folders=()
-for base in ~/Qt /opt/Qt; do
+for base in "${bases[@]}"; do
     for dir in "$base"/${QT_VERSION:-6.*}; do
         [ -d "$dir" ] && qt_folders+=("$dir")
     done