diff --git a/test/test_document.rb b/test/test_document.rb
index 041328d5..ace8b79e 100644
--- a/test/test_document.rb
+++ b/test/test_document.rb
@@ -175,7 +175,7 @@ class TestDocument < JekyllUnitTest
         }]
       )
       @site.process
-      @document = @site.collections["slides"].docs.select { |d| d.is_a?(Document) }.first
+      @document = @site.collections["slides"].docs.find { |d| d.is_a?(Document) }
     end
 
     should "know the front matter defaults" do
diff --git a/test/test_filters.rb b/test/test_filters.rb
index 19f841ee..737b2509 100644
--- a/test/test_filters.rb
+++ b/test/test_filters.rb
@@ -1036,7 +1036,7 @@ class TestFilters < JekyllUnitTest
         posts = @filter.site.site_payload["site"]["posts"]
         results = @filter.where_exp(posts, "post",
                                     "post.date > site.dont_show_posts_before")
-        assert_equal posts.select { |p| p.date > @sample_time }.count, results.length
+        assert_equal posts.count { |p| p.date > @sample_time }, results.length
       end
     end