diff --git a/.github/workflows/Linux.yml b/.github/workflows/Linux.yml
index 0efc5501..8e1a731f 100644
--- a/.github/workflows/Linux.yml
+++ b/.github/workflows/Linux.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@master
 
     - name: Install compiler & Qt
       run: |
diff --git a/.github/workflows/Windows.yml b/.github/workflows/Windows.yml
index 7d5e81c2..3b3220fd 100644
--- a/.github/workflows/Windows.yml
+++ b/.github/workflows/Windows.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: windows-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@master
 
     - name: Install OpenSSL
       run: |
diff --git a/.github/workflows/macOS-Intel.yml b/.github/workflows/macOS-Intel.yml
index 0c85832a..86c68d1d 100644
--- a/.github/workflows/macOS-Intel.yml
+++ b/.github/workflows/macOS-Intel.yml
@@ -6,7 +6,7 @@ on:
 
 env:
   SOURCE_DIR:   ${{ github.workspace }}/platform
-  QTDIR:        /usr/local/Cellar/qt@5/5.15.12/bin
+  QTDIR:        /usr/local/Cellar/qt@5/5.15.13/bin
   ARTIFACT:     ${{ github.workspace }}/platform/build/MLV\ App.dmg
 
 jobs:
@@ -15,7 +15,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@master
 
     - name: Install llvm & Qt & OpenSSL
       uses: ConorMacBride/install-package@v1.1.0