diff --git a/scripts/sync-versions.sh b/scripts/sync-versions.sh
index b98536e..6565a1a 100755
--- a/scripts/sync-versions.sh
+++ b/scripts/sync-versions.sh
@@ -13,6 +13,32 @@ get_cargo_version() {
     grep '^version = ' "$PROJECT_ROOT/Cargo.toml" | cut -d'"' -f2
 }
 
+# Fallback function for when jq is not available
+update_package_version_fallback() {
+    local package_file="$1"
+    local version="$2"
+    
+    # Get current version using grep/sed
+    local old_version=$(grep '"version"' "$package_file" | sed 's/.*"version":\s*"\([^"]*\)".*/\1/')
+    
+    # Skip update if version is already correct
+    if [[ "$old_version" == "$version" ]]; then
+        echo "✅ $(basename "$package_file"): Already up to date ($version)"
+        return 0
+    fi
+    
+    # Update version using sed
+    if sed -i.bak "s/\"version\":\s*\"[^\"]*\"/\"version\": \"$version\"/" "$package_file"; then
+        rm -f "$package_file.bak"
+        echo "✅ Updated $(basename "$package_file"): $old_version → $version (sed)"
+        return 0
+    else
+        rm -f "$package_file.bak"
+        echo "❌ Failed to update $package_file with sed"
+        return 1
+    fi
+}
+
 # Function to update package.json version using jq
 update_package_version() {
     local package_file="$1"
@@ -23,27 +49,30 @@ update_package_version() {
         return 1
     fi
     
-    # Check if jq is available
+    # Check if jq is available, fallback to sed if not
     if ! command -v jq &> /dev/null; then
-        echo "❌ jq is required but not installed. Please install jq first."
-        return 1
+        echo "⚠️ jq not found, using sed fallback for $package_file"
+        return update_package_version_fallback "$package_file" "$version"
     fi
     
     # Get current version using jq
     local old_version=$(jq -r '.version' "$package_file")
     
+    # Skip update if version is already correct
+    if [[ "$old_version" == "$version" ]]; then
+        echo "✅ $(basename "$package_file"): Already up to date ($version)"
+        return 0
+    fi
+    
     # Update version using jq (with proper formatting)
     local temp_file=$(mktemp)
-    jq --arg version "$version" '.version = $version' "$package_file" > "$temp_file"
-    
-    # Replace original file if jq succeeded
-    if [[ $? -eq 0 ]]; then
+    if jq --arg version "$version" '.version = $version' "$package_file" > "$temp_file" 2>/dev/null; then
         mv "$temp_file" "$package_file"
         echo "✅ Updated $(basename "$package_file"): $old_version → $version"
         return 0
     else
         rm -f "$temp_file"
-        echo "❌ Failed to update $package_file"
+        echo "❌ Failed to update $package_file with jq"
         return 1
     fi
 }
@@ -59,6 +88,7 @@ main() {
     fi
     
     echo "📦 Cargo.toml version: $version"
+    echo "🔍 Project root: $PROJECT_ROOT"
     echo "🔄 Syncing versions..."
     
     # List of package.json files to update
@@ -68,13 +98,25 @@ main() {
     )
     
     local updated_count=0
+    local failed_count=0
+    
     for package in "${packages[@]}"; do
         if update_package_version "$package" "$version"; then
             ((updated_count++))
+        else
+            ((failed_count++))
+            echo "⚠️ Failed to update: $package"
         fi
     done
     
-    echo "✅ Successfully synced $updated_count package.json files"
+    echo "📊 Summary: $updated_count updated, $failed_count failed"
+    
+    if [[ $failed_count -gt 0 ]]; then
+        echo "❌ Some files failed to update"
+        exit 1
+    else
+        echo "✅ Successfully synced all package.json files"
+    fi
 }
 
 # Run main function