diff --git a/pubspec.yaml b/pubspec.yaml
index da0788a4..ef2e3945 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -33,7 +33,7 @@ dependencies:
 dev_dependencies:
   archive: ">=1.0.0 <3.0.0"
   analyzer: ">=0.37.0 <0.40.0"
-  cli_pkg: "^1.0.0-beta.6"
+  cli_pkg: "^1.0.0-beta.10"
   crypto: ">=0.9.2 <3.0.0"
   dart_style: "^1.2.0"
   grinder: "^0.8.0"
@@ -46,3 +46,9 @@ dev_dependencies:
   test_process: "^1.0.0-rc.1"
   test: ">=0.12.42 <2.0.0"
   yaml: "^2.0.0"
+
+dependency_overrides:
+  cli_pkg:
+    git:
+      url: git://github.com/google/dart_cli_pkg
+      ref: 1.0.0-beta.10
diff --git a/tool/grind.dart b/tool/grind.dart
index bbe5a7d7..7dbd15b3 100644
--- a/tool/grind.dart
+++ b/tool/grind.dart
@@ -19,40 +19,36 @@ export 'grind/sanity_check.dart';
 export 'grind/synchronize.dart';
 
 void main(List<String> args) {
-  pkg.humanName = "Dart Sass";
-  pkg.botName = "Sass Bot";
-  pkg.botEmail = "sass.bot.beep.boop@gmail.com";
-  pkg.executables = {"sass": "bin/sass.dart"};
-  pkg.chocolateyNuspec = _nuspec;
-  pkg.homebrewRepo = "sass/homebrew-sass";
-  pkg.homebrewFormula = "sass.rb";
-  pkg.jsRequires = {"fs": "fs", "chokidar": "chokidar", "readline": "readline"};
-  pkg.jsModuleMainLibrary = "lib/src/node.dart";
-  pkg.npmPackageJson =
+  pkg.humanName.value = "Dart Sass";
+  pkg.botName.value = "Sass Bot";
+  pkg.botEmail.value = "sass.bot.beep.boop@gmail.com";
+  pkg.executables.value = {"sass": "bin/sass.dart"};
+  pkg.chocolateyNuspec.value = _nuspec;
+  pkg.homebrewRepo.value = "sass/homebrew-sass";
+  pkg.homebrewFormula.value = "sass.rb";
+  pkg.jsRequires.value = {
+    "fs": "fs",
+    "chokidar": "chokidar",
+    "readline": "readline"
+  };
+  pkg.jsModuleMainLibrary.value = "lib/src/node.dart";
+  pkg.npmPackageJson.fn = () =>
       json.decode(File("package/package.json").readAsStringSync())
           as Map<String, Object>;
-  pkg.npmReadme = _readAndResolveMarkdown("package/README.npm.md");
-  pkg.standaloneName = "dart-sass";
+  pkg.npmReadme.fn = () => _readAndResolveMarkdown("package/README.npm.md");
+  pkg.standaloneName.value = "dart-sass";
 
-  try {
-    pkg.githubReleaseNotes =
-        "To install Sass ${pkg.version}, download one of the packages below "
-        "and [add it to your PATH][], or see [the Sass website][] for full "
-        "installation instructions.\n"
-        "\n"
-        "[add it to your PATH]: https://katiek2.github.io/path-doc/\n"
-        "[the Sass website]: https://sass-lang.com/install\n"
-        "\n"
-        "# Changes\n"
-        "\n"
-        "${pkg.githubReleaseNotes}";
-  } catch (_) {
-    // `pkg.githubReleaseNotes` can fail if the CHANGELOG doesn't have an entry
-    // for the current version (which may happen for a -dev version). We don't
-    // care about those errors for most grinder tasks we run, and if we're
-    // running a release it'll call `pkg.githubReleaseNotes` again and throw the
-    // error in a way that's visible.
-  }
+  pkg.githubReleaseNotes.fn = () =>
+      "To install Sass ${pkg.version}, download one of the packages below "
+      "and [add it to your PATH][], or see [the Sass website][] for full "
+      "installation instructions.\n"
+      "\n"
+      "[add it to your PATH]: https://katiek2.github.io/path-doc/\n"
+      "[the Sass website]: https://sass-lang.com/install\n"
+      "\n"
+      "# Changes\n"
+      "\n"
+      "${pkg.githubReleaseNotes}";
 
   pkg.addAllTasks();
   grind(args);
diff --git a/tool/grind/utils.dart b/tool/grind/utils.dart
index eb888709..cd33f0cf 100644
--- a/tool/grind/utils.dart
+++ b/tool/grind/utils.dart
@@ -11,10 +11,10 @@ import 'package:path/path.dart' as p;
 
 /// Options for [run] that tell Git to commit using SassBot's name and email.
 final sassBotEnvironment = RunOptions(environment: {
-  "GIT_AUTHOR_NAME": pkg.botName,
-  "GIT_AUTHOR_EMAIL": pkg.botEmail,
-  "GIT_COMMITTER_NAME": pkg.botName,
-  "GIT_COMMITTER_EMAIL": pkg.botEmail
+  "GIT_AUTHOR_NAME": pkg.botName.value,
+  "GIT_AUTHOR_EMAIL": pkg.botEmail.value,
+  "GIT_COMMITTER_NAME": pkg.botName.value,
+  "GIT_COMMITTER_EMAIL": pkg.botEmail.value
 });
 
 /// Ensure that the `build/` directory exists.