diff --git a/CHANGES.rst b/CHANGES.rst
index 26e005a3..c94a70e0 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -6,6 +6,9 @@ There's a frood who really knows where his towel is.
 2.6rc1 (unreleased)
 ^^^^^^^^^^^^^^^^^^^
 
+- Add missing upgrade step to cook CSS resources.
+  [hvelarde]
+
 - Don't fail in the Twitter plugin if the title has non-ASCII characters.
   [csenger, hvelarde]
 
diff --git a/sc/social/like/profiles/default/metadata.xml b/sc/social/like/profiles/default/metadata.xml
index 36e8fe14..10a1d728 100644
--- a/sc/social/like/profiles/default/metadata.xml
+++ b/sc/social/like/profiles/default/metadata.xml
@@ -1,4 +1,4 @@
 <?xml version="1.0"?>
 <metadata>
-  <version>3041</version>
+  <version>3042</version>
 </metadata>
diff --git a/sc/social/like/tests/test_upgrades.py b/sc/social/like/tests/test_upgrades.py
index cd63546a..88e41d25 100644
--- a/sc/social/like/tests/test_upgrades.py
+++ b/sc/social/like/tests/test_upgrades.py
@@ -186,3 +186,14 @@ def test_register_cover_tiles(self):
 
         registered = api.portal.get_registry_record('plone.app.tiles')
         [self.assertIn(t, registered) for t in TILES]
+
+
+class To3042TestCase(UpgradeTestCaseBase):
+
+    def setUp(self):
+        UpgradeTestCaseBase.setUp(self, u'3041', u'3042')
+
+    def test_upgrade_to_3042_registrations(self):
+        version = self.setup.getLastVersionForProfile(self.profile_id)[0]
+        self.assertGreaterEqual(int(version), int(self.to_version))
+        self.assertEqual(self.total_steps, 1)
diff --git a/sc/social/like/upgrades/__init__.py b/sc/social/like/upgrades/__init__.py
index 34294f65..52df159b 100644
--- a/sc/social/like/upgrades/__init__.py
+++ b/sc/social/like/upgrades/__init__.py
@@ -3,14 +3,14 @@
 from sc.social.like.logger import logger
 
 
-def cook_css_resources(context):
+def cook_css_resources(context):  # pragma: no cover
     """Cook css resources."""
     css_tool = api.portal.get_tool('portal_css')
     css_tool.cookResources()
     logger.info('CSS resources were cooked')
 
 
-def cook_javascript_resources(context):
+def cook_javascript_resources(context):  # pragma: no cover
     """Cook javascript resources."""
     js_tool = api.portal.get_tool('portal_javascripts')
     js_tool.cookResources()
diff --git a/sc/social/like/upgrades/configure.zcml b/sc/social/like/upgrades/configure.zcml
index b1376b9c..248254a6 100644
--- a/sc/social/like/upgrades/configure.zcml
+++ b/sc/social/like/upgrades/configure.zcml
@@ -7,5 +7,6 @@
     <include package=".v3030" />
     <include package=".v3040" />
     <include package=".v3041" />
+    <include package=".v3042" />
 
 </configure>
diff --git a/sc/social/like/upgrades/v3042/__init__.py b/sc/social/like/upgrades/v3042/__init__.py
new file mode 100644
index 00000000..380474e0
--- /dev/null
+++ b/sc/social/like/upgrades/v3042/__init__.py
@@ -0,0 +1 @@
+# -*- coding:utf-8 -*-
diff --git a/sc/social/like/upgrades/v3042/configure.zcml b/sc/social/like/upgrades/v3042/configure.zcml
new file mode 100644
index 00000000..93db680e
--- /dev/null
+++ b/sc/social/like/upgrades/v3042/configure.zcml
@@ -0,0 +1,18 @@
+<configure
+    xmlns="http://namespaces.zope.org/zope"
+    xmlns:genericsetup="http://namespaces.zope.org/genericsetup">
+
+  <genericsetup:upgradeSteps
+      source="3041"
+      destination="3042"
+      profile="sc.social.like:default">
+
+    <genericsetup:upgradeStep
+        title="Cook CSS resources"
+        description="There were changes in the CSS files, so we need to cook the resources."
+        handler="..cook_css_resources"
+        />
+
+  </genericsetup:upgradeSteps>
+
+</configure>