diff --git a/DEPS b/DEPS
index 66274e12a5b..7e3aaeac1a6 100644
--- a/DEPS
+++ b/DEPS
@@ -109,7 +109,7 @@ vars = {
   # For more details, see https://github.com/dart-lang/sdk/issues/30164
   "dart_style_rev": "6f894c0ca33686122be9085f06e5b9bf6ad55262",
 
-  "dartdoc_rev" : "b3927dd89d6ff9c78dc88ab2901e63b6a3bf29b7",
+  "dartdoc_rev" : "a39f378f8100b907e6285ac825967d764fd664ad",
   "devtools_rev" : "b9f2039239cc72ac8b26f8a5fe46123f34d53ce1",
   "ffi_rev": "4dd32429880a57b64edaf54c9d5af8a9fa9a4ffb",
   "fixnum_rev": "848341f061359ef7ddc0cad472c2ecbb036b28ac",
diff --git a/pkg/dartdev/lib/src/commands/doc.dart b/pkg/dartdev/lib/src/commands/doc.dart
index 9a9c4a2e525..fb9d38a4198 100644
--- a/pkg/dartdev/lib/src/commands/doc.dart
+++ b/pkg/dartdev/lib/src/commands/doc.dart
@@ -90,7 +90,7 @@ For additional documentation generation options, see the 'dartdoc_options.yaml'
       if (verbose) ...['--verbose-warnings', '--show-stats'],
     ]);
 
-    final config = await parseOptions(pubPackageMetaProvider, options);
+    final config = parseOptions(pubPackageMetaProvider, options);
     if (config == null) {
       // There was an error while parsing options.
       return 2;
@@ -105,7 +105,7 @@ For additional documentation generation options, see the 'dartdoc_options.yaml'
         config, pubPackageMetaProvider, packageConfigProvider);
     final dartdoc = config.generateDocs
         ? await Dartdoc.fromContext(config, packageBuilder)
-        : await Dartdoc.withEmptyGenerator(config, packageBuilder);
+        : Dartdoc.withEmptyGenerator(config, packageBuilder);
     dartdoc.executeGuarded();
     return 0;
   }