diff --git a/.github/workflows/dart.yml b/.github/workflows/dart.yml
index c84e36f0..09d7d704 100644
--- a/.github/workflows/dart.yml
+++ b/.github/workflows/dart.yml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744
-      - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f
+      - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d
        with:
           sdk: ${{ matrix.sdk }}
 
diff --git a/bin/_boot.dart b/bin/_boot.dart
index 07beee3d..c6b66363 100644
--- a/bin/_boot.dart
+++ b/bin/_boot.dart
@@ -6,6 +6,8 @@
 /// The main entry-point (`bin/grinder.dart`) trampolines into a different
 /// script; running with `_boot.dart` instead allows you to hit breakpoints when
 /// debugging.
+library;
+
 import 'package:grinder/grinder.dart';
 
 Future<dynamic> main(List<String> args) => grind(args);
diff --git a/lib/src/cli.dart b/lib/src/cli.dart
index fb10be94..d3f5d1ca 100644
--- a/lib/src/cli.dart
+++ b/lib/src/cli.dart
@@ -13,7 +13,7 @@ import 'cli_util.dart';
 import 'singleton.dart' as singleton;
 
 // This version must be updated in tandem with the pubspec version.
-const String appVersion = '0.9.4';
+const String appVersion = '0.9.5-wip';
 
 List<String> grinderArgs() {
   if (_args == null) fail('grinderArgs() may only be called after grind().');