diff --git a/.github/workflows/libclang-abi-tests.yml b/.github/workflows/libclang-abi-tests.yml
--- a/.github/workflows/libclang-abi-tests.yml
+++ b/.github/workflows/libclang-abi-tests.yml
@@ -99,11 +99,13 @@
             ref: ${{ github.sha }}
             repo: ${{ github.repository }}
     steps:
+      - name: Sync APT repositories
+        run: sudo apt update
       - name: Install Ninja
         uses: llvm/actions/install-ninja@main
       - name: Install abi-compliance-checker
         run: |
-          sudo apt-get install abi-dumper autoconf pkg-config
+          sudo apt install abi-dumper autoconf pkg-config
       - name: Install universal-ctags
         run: |
           git clone https://github.com/universal-ctags/ctags.git
@@ -151,8 +153,10 @@
         with:
           name: build-latest
 
+      - name: Sync APT repositories
+        run: sudo apt update
       - name: Install abi-compliance-checker
-        run: sudo apt-get install abi-compliance-checker
+        run: sudo apt install abi-compliance-checker
       - name: Compare ABI
         run: |
           for lib in ${{ needs.abi-dump-setup.outputs.ABI_LIBS }}; do
diff --git a/.github/workflows/llvm-project-tests.yml b/.github/workflows/llvm-project-tests.yml
--- a/.github/workflows/llvm-project-tests.yml
+++ b/.github/workflows/llvm-project-tests.yml
@@ -57,6 +57,9 @@
         uses: actions/setup-python@v4
         with:
           python-version: '3.11'
+      - name: Sync APT repositories
+        if: startsWith(matrix.os, 'ubuntu')
+        run: sudo apt update
       - name: Install Ninja
         uses: llvm/actions/install-ninja@main
       # actions/checkout deletes any existing files in the new git directory,
diff --git a/.github/workflows/llvm-tests.yml b/.github/workflows/llvm-tests.yml
--- a/.github/workflows/llvm-tests.yml
+++ b/.github/workflows/llvm-tests.yml
@@ -105,11 +105,13 @@
             ref: ${{ github.sha }}
             repo: ${{ github.repository }}
     steps:
+      - name: Sync APT repositories
+        run: sudo apt update
       - name: Install Ninja
         uses: llvm/actions/install-ninja@main
       - name: Install abi-compliance-checker
         run: |
-          sudo apt-get install abi-dumper autoconf pkg-config
+          sudo apt install abi-dumper autoconf pkg-config
       - name: Install universal-ctags
         run: |
           git clone https://github.com/universal-ctags/ctags.git
@@ -177,8 +179,10 @@
         with:
           name: symbol-list
 
+      - name: Sync APT repositories
+        run: sudo apt update
       - name: Install abi-compliance-checker
-        run: sudo apt-get install abi-compliance-checker
+        run: sudo apt install abi-compliance-checker
       - name: Compare ABI
         run: |
           if [ -s symbol-list/llvm.symbols ]; then
diff --git a/.github/workflows/release-binaries.yml b/.github/workflows/release-binaries.yml
--- a/.github/workflows/release-binaries.yml
+++ b/.github/workflows/release-binaries.yml
@@ -85,6 +85,9 @@
       if: matrix.target.brew-build-deps != ''
       run: brew install ${{ matrix.target.brew-build-deps }}
 
+    - name: Sync APT repositories
+      run: sudo apt update
+
     - name: Install Debian build dependencies
       if: matrix.target.debian-build-deps != ''
       run: sudo apt install ${{ matrix.target.debian-build-deps }}
diff --git a/.github/workflows/release-tasks.yml b/.github/workflows/release-tasks.yml
--- a/.github/workflows/release-tasks.yml
+++ b/.github/workflows/release-tasks.yml
@@ -24,10 +24,12 @@
           release_version=$(echo "${{ github.ref_name }}" | sed 's/llvmorg-//g')
           echo "release-version=$release_version" >> $GITHUB_OUTPUT
 
+      - name: Sync APT repositories
+        run: sudo apt update
+
       - name: Install Dependencies
         run: |
-          sudo apt-get update
-          sudo apt-get install -y \
+          sudo apt install -y \
               doxygen \
               graphviz \
               python3-github \
@@ -83,8 +85,11 @@
       - name: Checkout LLVM
         uses: actions/checkout@v3
 
+      - name: Sync APT repositories
+        run: sudo apt update
+
       - name: Install dependencies
-        run: apt-get install -y python3-setuptools
+        run: sudo apt install -y python3-setuptools
 
       - name: Test lit
         run: |