diff --git a/.github/workflows/mac.yml b/.github/workflows/mac.yml
index 21e486f17..3d259f333 100644
--- a/.github/workflows/mac.yml
+++ b/.github/workflows/mac.yml
@@ -57,9 +57,9 @@ jobs:
       PREFIX: "/usr/local/macos"
       MACOSX_DEPLOYMENT_TARGET: "10.12"
       XZ: "xz-5.2.4"
-      QT: "5_15_1"
+      QT: "5_15_2"
       OPENSSL_VER: "1_1_1"
-      QT_PREFIX: "/usr/local/desktop-app/Qt-5.15.1"
+      QT_PREFIX: "/usr/local/desktop-app/Qt-5.15.2"
       LIBICONV_VER: "libiconv-1.16"
       UPLOAD_ARTIFACT: "false"
       ONLY_CACHE: "false"
@@ -419,20 +419,20 @@ jobs:
           build/gyp_crashpad.py -Dmac_deployment_target=10.10
           ninja -C out/Debug
 
-      - name: Qt 5.15.1 cache.
+      - name: Qt 5.15.2 cache.
         id: cache-qt
         uses: actions/cache@v2
         with:
           path: ${{ env.LibrariesPath }}/qt-cache
-          key: ${{ runner.OS }}-qt-${{ env.CACHE_KEY }}-${{ hashFiles('**/qtbase_5_15_1/*') }}
-      - name: Use cached Qt 5.15.1.
+          key: ${{ runner.OS }}-qt-${{ env.CACHE_KEY }}-${{ hashFiles('**/qtbase_5_15_2/*') }}
+      - name: Use cached Qt 5.15.2.
         if: steps.cache-qt.outputs.cache-hit == 'true'
         run: |
           cd $LibrariesPath
-          mv qt-cache Qt-5.15.1
+          mv qt-cache Qt-5.15.2
           sudo mkdir -p $QT_PREFIX
-          sudo mv -f Qt-5.15.1 "$(dirname "$QT_PREFIX")"/
-      - name: Qt 5.15.1 build.
+          sudo mv -f Qt-5.15.2 "$(dirname "$QT_PREFIX")"/
+      - name: Qt 5.15.2 build.
         if: steps.cache-qt.outputs.cache-hit != 'true'
         run: |
           cd $LibrariesPath
@@ -440,7 +440,7 @@ jobs:
           git clone git://code.qt.io/qt/qt5.git qt_$QT
           cd qt_$QT
           perl init-repository --module-subset=qtbase,qtimageformats
-          git checkout v5.15.1
+          git checkout v5.15.2
           git submodule update qtbase
           git submodule update qtimageformats
           cd qtbase
diff --git a/.github/workflows/win.yml b/.github/workflows/win.yml
index 0f7e70d91..81b65aa12 100644
--- a/.github/workflows/win.yml
+++ b/.github/workflows/win.yml
@@ -59,8 +59,8 @@ jobs:
       SDK: "10.0.18362.0"
       VC: "call vcvars32.bat && cd Libraries"
       GIT: "https://github.com"
-      QT: "5_15_1"
-      QT_VER: "5.15.1"
+      QT: "5_15_2"
+      QT_VER: "5.15.2"
       OPENSSL_VER: "1_1_1"
       UPLOAD_ARTIFACT: "false"
       ONLY_CACHE: "false"
@@ -211,7 +211,7 @@ jobs:
         run: |
           %VC%
 
-          git clone -b openal-soft-1.21.0 --depth=1 $GIT/kcat/openal-soft.git
+          git clone -b openal-soft-1.21.0 --depth=1 %GIT%/kcat/openal-soft.git
           cd openal-soft\build
           cmake .. ^
           -G "Visual Studio 16 2019" ^
@@ -299,13 +299,13 @@ jobs:
 
           rmdir /S /Q .git
 
-      - name: Qt 5.15.1 cache.
+      - name: Qt 5.15.2 cache.
         id: cache-qt
         uses: actions/cache@v2
         with:
           path: ${{ env.LibrariesPath }}/Qt-${{ env.QT_VER }}
-          key: ${{ runner.OS }}-qt-${{ env.CACHE_KEY }}-${{ hashFiles('**/qtbase_5_15_1/*') }}
-      - name: Configure Qt 5.15.1.
+          key: ${{ runner.OS }}-qt-${{ env.CACHE_KEY }}-${{ hashFiles('**/qtbase_5_15_2/*') }}
+      - name: Configure Qt 5.15.2.
         if: steps.cache-qt.outputs.cache-hit != 'true'
         run: |
           %VC%
@@ -342,7 +342,7 @@ jobs:
           -I "%LibrariesPath%\mozjpeg" ^
           LIBJPEG_LIBS_DEBUG="%LibrariesPath%\mozjpeg\Debug\jpeg-static.lib" ^
           LIBJPEG_LIBS_RELEASE="%LibrariesPath%\mozjpeg\Release\jpeg-static.lib"
-      - name: Qt 5.15.1 build.
+      - name: Qt 5.15.2 build.
         if: steps.cache-qt.outputs.cache-hit != 'true'
         run: |
           %VC%