diff --git a/test/test_plugin_manager.rb b/test/test_plugin_manager.rb
index 809a1a46..c43c1272 100644
--- a/test/test_plugin_manager.rb
+++ b/test/test_plugin_manager.rb
@@ -21,7 +21,7 @@ class TestPluginManager < JekyllUnitTest
   context "JEKYLL_NO_BUNDLER_REQUIRE set to `true`" do
     should "not require from bundler" do
       with_env("JEKYLL_NO_BUNDLER_REQUIRE", "true") do
-        assert_equal false, Jekyll::PluginManager.require_from_bundler,
+        refute Jekyll::PluginManager.require_from_bundler,
                      "Gemfile plugins were required but shouldn't have been"
         assert ENV["JEKYLL_NO_BUNDLER_REQUIRE"]
       end
@@ -32,7 +32,7 @@ class TestPluginManager < JekyllUnitTest
     should "not require from bundler" do
       with_env("JEKYLL_NO_BUNDLER_REQUIRE", nil) do
         with_no_gemfile do
-          assert_equal false, Jekyll::PluginManager.require_from_bundler,
+          refute Jekyll::PluginManager.require_from_bundler,
                        "Gemfile plugins were required but shouldn't have been"
           assert_nil ENV["JEKYLL_NO_BUNDLER_REQUIRE"]
         end