diff --git a/dash_query_builder/__init__.py b/dash_query_builder/__init__.py
index cace8f8..d8deddd 100644
--- a/dash_query_builder/__init__.py
+++ b/dash_query_builder/__init__.py
@@ -44,11 +44,10 @@
 _js_dist.extend(
     [
         {
-            "relative_package_path": "async-{}.{}.js".format(
-                async_resource, mode_suffix
-            ),
-            "external_url": ("https://unpkg.com/{0}@{2}" "/{1}/async-{3}.js").format(
-                package_name, __name__, __version__, async_resource
+            "relative_package_path": f"async-{async_resource}.{mode_suffix}.js",
+            "external_url": (
+                f"https://unpkg.com/{package_name}@{__version__}"
+                f"/{__name__}/async-{async_resource}.js"
             ),
             "namespace": package_name,
             "async": True,
@@ -61,12 +60,11 @@
 _js_dist.extend(
     [
         {
-            "relative_package_path": "async-{}.{}.js.map".format(
-                async_resource, mode_suffix
-            ),
+            "relative_package_path": f"async-{async_resource}.{mode_suffix}.js.map",
             "external_url": (
-                "https://unpkg.com/{0}@{2}" "/{1}/async-{3}.js.map"
-            ).format(package_name, __name__, __version__, async_resource),
+                f"https://unpkg.com/{package_name}@{__version__}"
+                f"/{__name__}/async-{async_resource}.js.map"
+            ),
             "namespace": package_name,
             "dynamic": True,
         }