diff --git a/test/models/bubble_test.rb b/test/models/bubble_test.rb
index 75756ede6..bf0dde5f4 100644
--- a/test/models/bubble_test.rb
+++ b/test/models/bubble_test.rb
@@ -14,10 +14,8 @@ class BubbleTest < ActiveSupport::TestCase
   end
 
   test "boosting" do
-    assert_changes "bubbles(:logo).activity_score", +1 do
-      assert_difference %w[ bubbles(:logo).boost_count Event.count ], +1 do
-        bubbles(:logo).boost!
-      end
+    assert_difference %w[ bubbles(:logo).boost_count bubbles(:logo).activity_score Event.count ], +1 do
+      bubbles(:logo).boost!
     end
   end
 
diff --git a/test/models/comment_test.rb b/test/models/comment_test.rb
index b5cbe0779..39e8f72b5 100644
--- a/test/models/comment_test.rb
+++ b/test/models/comment_test.rb
@@ -12,16 +12,12 @@ class CommentTest < ActiveSupport::TestCase
   end
 
   test "updating bubble counter" do
-    assert_changes "bubbles(:logo).activity_score" do
-      assert_difference "bubbles(:logo).comments_count", 1 do
-        bubbles(:logo).capture Comment.new(body: "I'd prefer something more rustic")
-      end
+    assert_difference %w[ bubbles(:logo).comments_count bubbles(:logo).activity_score ], +1 do
+      bubbles(:logo).capture Comment.new(body: "I'd prefer something more rustic")
     end
 
-    assert_changes "bubbles(:logo).activity_score" do
-      assert_difference "bubbles(:logo).comments_count", -1 do
-        bubbles(:logo).messages.comments.last.destroy
-      end
+    assert_difference %w[ bubbles(:logo).comments_count bubbles(:logo).activity_score ], -1 do
+      bubbles(:logo).messages.comments.last.destroy
     end
   end
 end