diff --git a/.github/workflows/nuget-static-graphics.yml b/.github/workflows/nuget-static-graphics.yml
index a495062..325bbab 100644
--- a/.github/workflows/nuget-static-graphics.yml
+++ b/.github/workflows/nuget-static-graphics.yml
@@ -35,7 +35,7 @@ jobs:
       - name: Install native build dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y clang lld llvm ninja-build pkg-config libfontconfig1-dev libglib2.0-dev
+          sudo apt-get install -y clang lld llvm libclang-rt-dev ninja-build pkg-config libfontconfig1-dev libglib2.0-dev
 
       - name: Build Linux static graphics libraries
         env:
diff --git a/scripts/build-linux-static-graphics.sh b/scripts/build-linux-static-graphics.sh
index e987f57..4d1cf47 100755
--- a/scripts/build-linux-static-graphics.sh
+++ b/scripts/build-linux-static-graphics.sh
@@ -11,6 +11,7 @@ ANGLE_BRANCH="${ANGLE_BRANCH:-7151}"
 BUILD_JOBS="${BUILD_JOBS:-$(nproc)}"
 ANGLE_PATCH_DIR="${ANGLE_PATCH_DIR:-$ROOT_DIR/External/NativeStatic/patches}"
 LLVM_AR="${LLVM_AR:-llvm-ar-19}"
+SKIA_DEPS_RETRIES="${SKIA_DEPS_RETRIES:-3}"
 
 usage() {
   cat <<'USAGE'
@@ -69,10 +70,37 @@ sync_skiasharp() {
   echo "$src"
 }
 
+prepare_skia_git_sync_deps() {
+  local sync_deps="$1/tools/git-sync-deps"
+  python3 - "$sync_deps" <<'PY'
+import pathlib
+import sys
+
+path = pathlib.Path(sys.argv[1])
+text = path.read_text()
+old = "  multithread(git_checkout_to_directory, list_of_arg_lists)"
+new = "  for args in list_of_arg_lists:\n    git_checkout_to_directory(*args)"
+if old in text:
+    path.write_text(text.replace(old, new))
+PY
+}
+
 sync_skia_deps() {
   local skia_dir="$1/externals/skia"
   if [[ ! -x "$skia_dir/bin/gn" ]]; then
-    python3 "$skia_dir/tools/git-sync-deps"
+    prepare_skia_git_sync_deps "$skia_dir"
+
+    local attempt
+    for attempt in $(seq 1 "$SKIA_DEPS_RETRIES"); do
+      if python3 "$skia_dir/tools/git-sync-deps"; then
+        return 0
+      fi
+      if [[ "$attempt" == "$SKIA_DEPS_RETRIES" ]]; then
+        return 1
+      fi
+      echo "git-sync-deps failed; retrying ($attempt/$SKIA_DEPS_RETRIES)..." >&2
+      sleep 10
+    done
   fi
 }
 
diff --git a/scripts/build-macos-static-graphics.sh b/scripts/build-macos-static-graphics.sh
index 534861c..f841609 100755
--- a/scripts/build-macos-static-graphics.sh
+++ b/scripts/build-macos-static-graphics.sh
@@ -10,6 +10,7 @@ SKIASHARP_VERSION="${SKIASHARP_VERSION:-3.119.2}"
 ANGLE_BRANCH="${ANGLE_BRANCH:-7151}"
 BUILD_JOBS="${BUILD_JOBS:-$(sysctl -n hw.ncpu)}"
 ANGLE_PATCH_DIR="${ANGLE_PATCH_DIR:-$ROOT_DIR/External/NativeStatic/patches}"
+SKIA_DEPS_RETRIES="${SKIA_DEPS_RETRIES:-3}"
 
 require_cmd() {
   if ! command -v "$1" >/dev/null 2>&1; then
@@ -64,6 +65,38 @@ sync_skiasharp() {
   echo "$src"
 }
 
+prepare_skia_git_sync_deps() {
+  local sync_deps="$1/tools/git-sync-deps"
+  python3 - "$sync_deps" <<'PY'
+import pathlib
+import sys
+
+path = pathlib.Path(sys.argv[1])
+text = path.read_text()
+old = "  multithread(git_checkout_to_directory, list_of_arg_lists)"
+new = "  for args in list_of_arg_lists:\n    git_checkout_to_directory(*args)"
+if old in text:
+    path.write_text(text.replace(old, new))
+PY
+}
+
+sync_skia_deps() {
+  local skia_dir="$1"
+  prepare_skia_git_sync_deps "$skia_dir"
+
+  local attempt
+  for attempt in $(seq 1 "$SKIA_DEPS_RETRIES"); do
+    if python3 "$skia_dir/tools/git-sync-deps"; then
+      return 0
+    fi
+    if [[ "$attempt" == "$SKIA_DEPS_RETRIES" ]]; then
+      return 1
+    fi
+    echo "git-sync-deps failed; retrying ($attempt/$SKIA_DEPS_RETRIES)..." >&2
+    sleep 10
+  done
+}
+
 build_skia() {
   ensure_tools
   ensure_depot_tools
@@ -71,7 +104,7 @@ build_skia() {
   src="$(sync_skiasharp)"
   local skia_dir="$src/externals/skia"
   if [[ ! -x "$skia_dir/bin/gn" ]]; then
-    python3 "$skia_dir/tools/git-sync-deps"
+    sync_skia_deps "$skia_dir"
   fi
 
   local out_dir="$skia_dir/out/mac-static-$TARGET_CPU"
diff --git a/scripts/build-windows-static-graphics.ps1 b/scripts/build-windows-static-graphics.ps1
index d188650..c80483a 100644
--- a/scripts/build-windows-static-graphics.ps1
+++ b/scripts/build-windows-static-graphics.ps1
@@ -14,6 +14,7 @@ $Rid = if ($env:RID) { $env:RID } else { "win-$TargetCpu" }
 $OutputDir = if ($env:OUTPUT_DIR) { $env:OUTPUT_DIR } else { Join-Path $RootDir "External\NativeStatic\$Rid" }
 $BuildJobs = if ($env:BUILD_JOBS) { $env:BUILD_JOBS } else { [Environment]::ProcessorCount }
 $AnglePatchDir = if ($env:ANGLE_PATCH_DIR) { $env:ANGLE_PATCH_DIR } else { Join-Path $RootDir "External\NativeStatic\patches" }
+$SkiaDepsRetries = if ($env:SKIA_DEPS_RETRIES) { [int]$env:SKIA_DEPS_RETRIES } else { 3 }
 
 function Require-Command($Name) {
     if (-not (Get-Command $Name -ErrorAction SilentlyContinue)) {
@@ -61,13 +62,39 @@ function Sync-SkiaSharp {
     return $src
 }
 
+function Prepare-SkiaGitSyncDeps($SkiaDir) {
+    $syncDeps = Join-Path $SkiaDir "tools\git-sync-deps"
+    $text = Get-Content -Path $syncDeps -Raw
+    $old = "  multithread(git_checkout_to_directory, list_of_arg_lists)"
+    $new = "  for args in list_of_arg_lists:`n    git_checkout_to_directory(*args)"
+    if ($text.Contains($old)) {
+        Set-Content -Path $syncDeps -Value $text.Replace($old, $new) -NoNewline -Encoding UTF8
+    }
+}
+
+function Invoke-SkiaGitSyncDeps($SkiaDir) {
+    Prepare-SkiaGitSyncDeps $SkiaDir
+
+    for ($attempt = 1; $attempt -le $SkiaDepsRetries; $attempt++) {
+        python (Join-Path $SkiaDir "tools\git-sync-deps")
+        if ($LASTEXITCODE -eq 0) {
+            return
+        }
+        if ($attempt -eq $SkiaDepsRetries) {
+            throw "git-sync-deps failed after $SkiaDepsRetries attempts"
+        }
+        Write-Warning "git-sync-deps failed; retrying ($attempt/$SkiaDepsRetries)..."
+        Start-Sleep -Seconds 10
+    }
+}
+
 function Build-Skia {
     Ensure-Tools
     Ensure-DepotTools
     $src = Sync-SkiaSharp
     $skiaDir = Join-Path $src "externals\skia"
     if (-not (Test-Path (Join-Path $skiaDir "bin\gn.exe"))) {
-        python (Join-Path $skiaDir "tools\git-sync-deps")
+        Invoke-SkiaGitSyncDeps $skiaDir
     }
 
     $outDir = Join-Path $skiaDir "out\win-static-$TargetCpu"