diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e2891ce..b9db024 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,4 +22,4 @@ jobs:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true
 
-      - run: bundle exec rake
+      - run: bundle exec rake spec
diff --git a/.github/workflows/typing.yml b/.github/workflows/typing.yml
index f6dd995..690fe57 100644
--- a/.github/workflows/typing.yml
+++ b/.github/workflows/typing.yml
@@ -16,7 +16,7 @@ jobs:
           bundler-cache: true
 
       - run: rbs collection install
-      - run: bundle exec rbs -I sig validate
+      - run: bundle exec rake rbs:validate
 
   steep:
     runs-on: ubuntu-latest
@@ -30,4 +30,4 @@ jobs:
           bundler-cache: true
 
       - run: rbs collection install
-      - run: bundle exec steep check
+      - run: bundle exec rake steep:check
diff --git a/Rakefile b/Rakefile
index 1621901..99b93fd 100644
--- a/Rakefile
+++ b/Rakefile
@@ -3,4 +3,16 @@ require 'rspec/core/rake_task'
 
 RSpec::Core::RakeTask.new :spec
 
-task default: :spec
+namespace :rbs do
+  task :validate do
+    sh 'bundle exec rbs -I sig validate'
+  end
+end
+
+namespace :steep do
+  task :check do
+    sh 'bundle exec steep check'
+  end
+end
+
+task default: %i(spec rbs:validate steep:check)