diff --git a/lib/cc/service/helper.rb b/lib/cc/service/helper.rb
index fd1d9c5..2bcecff 100644
--- a/lib/cc/service/helper.rb
+++ b/lib/cc/service/helper.rb
@@ -28,6 +28,14 @@ def color
     end
   end
 
+  def hex_color
+    if improved?
+      "#38ae6f"
+    else
+      "#ed2f00"
+    end
+  end
+
   def changed
     if improved?
       "improved"
diff --git a/lib/cc/services/slack.rb b/lib/cc/services/slack.rb
index 3a07d43..d5ff587 100644
--- a/lib/cc/services/slack.rb
+++ b/lib/cc/services/slack.rb
@@ -15,11 +15,11 @@ def receive_test
   end
 
   def receive_coverage
-    speak(formatter.format_coverage, icon_emoji: emoji)
+    speak(formatter.format_coverage, hex_color)
   end
 
   def receive_quality
-    speak(formatter.format_quality, icon_emoji: emoji)
+    speak(formatter.format_quality, hex_color)
   end
 
   def receive_vulnerability
@@ -32,11 +32,12 @@ def formatter
     CC::Formatters::LinkedFormatter.new(self, prefix: nil, link_style: :wiki)
   end
 
-  def speak(message, options = {})
-    body = {
-      text: message,
-      username: "Code Climate"
-    }.merge(options)
+  def speak(message, color = nil)
+    body = { attachments: [{
+      color: color,
+      fallback: message,
+      fields: [{ value: message }]
+    }]}
 
     if config.channel
       body[:channel] = config.channel
diff --git a/test/slack_test.rb b/test/slack_test.rb
index cd09570..473c943 100644
--- a/test/slack_test.rb
+++ b/test/slack_test.rb
@@ -12,7 +12,7 @@ def test_test_hook
   def test_coverage_improved
     e = event(:coverage, to: 90.2, from: 80)
 
-    assert_slack_receives(":sunny:", e, [
+    assert_slack_receives("#38ae6f", e, [
       "[Example]",
       "<https://codeclimate.com/repos/1/feed|Test coverage>",
       "has improved to 90.2% (+10.2%)",
@@ -23,7 +23,7 @@ def test_coverage_improved
   def test_coverage_declined
     e = event(:coverage, to: 88.6, from: 94.6)
 
-    assert_slack_receives(":umbrella:", e, [
+    assert_slack_receives("#ed2f00", e, [
       "[Example]",
       "<https://codeclimate.com/repos/1/feed|Test coverage>",
       "has declined to 88.6% (-6.0%)",
@@ -34,7 +34,7 @@ def test_coverage_declined
   def test_quality_improved
     e = event(:quality, to: "A", from: "B")
 
-    assert_slack_receives(":sunny:", e, [
+    assert_slack_receives("#38ae6f", e, [
       "[Example]",
       "<https://codeclimate.com/repos/1/feed|User>",
       "has improved from a B to an A",
@@ -45,7 +45,7 @@ def test_quality_improved
   def test_quality_declined_without_compare_url
     e = event(:quality, to: "D", from: "C")
 
-    assert_slack_receives(":umbrella:", e, [
+    assert_slack_receives("#ed2f00", e, [
       "[Example]",
       "<https://codeclimate.com/repos/1/feed|User>",
       "has declined from a C to a D",
@@ -96,12 +96,14 @@ def test_multiple_vulnerabilities
 
   private
 
-  def assert_slack_receives(emoji, event_data, expected_body)
+  def assert_slack_receives(color, event_data, expected_body)
     @stubs.post '/token' do |env|
       body = JSON.parse(env[:body])
-      assert_equal "Code Climate", body["username"]
-      assert_equal emoji, body["icon_emoji"] # may be nil
-      assert_equal expected_body, body["text"]
+      attachment = body["attachments"].first
+      field = attachment["fields"].first
+      assert_equal color, attachment["color"] # may be nil
+      assert_equal expected_body, attachment["fallback"]
+      assert_equal expected_body, field["value"]
       [200, {}, '']
     end