diff --git a/tests/default_conf.py b/tests/default_conf.py
index 63b49a1..0ea4d20 100644
--- a/tests/default_conf.py
+++ b/tests/default_conf.py
@@ -115,6 +115,18 @@
 
 CSS_OVERRIDE = ['assets/css/myblog.css']
 
+# Jinja config - Pelican 4
+JINJA_ENVIRONMENT = {
+  'extensions' :[
+    'jinja2.ext.loopcontrols',
+    'jinja2.ext.i18n',
+    'jinja2.ext.with_',
+    'jinja2.ext.do'
+  ]
+}
+
+JINJA_FILTERS = {'max': max}
+
 # AUTHORS_BIO = {
 #   "arul": {
 #     "name": "Arul",
diff --git a/tests/test_coverimages.py b/tests/test_coverimages.py
index 18ec146..08182e6 100644
--- a/tests/test_coverimages.py
+++ b/tests/test_coverimages.py
@@ -59,7 +59,7 @@ def test_article_header_http_cover(self):
   def test_article_theme_cover(self):
     rstPath="content/article_without_cover.rst"
     result, soup = self.gen_article_and_html_from_rst(rstPath)
-    selected = soup.find(id="blog-header")
+    selected = soup.find(id="post-header")
     # Assertion
     self.assertTrue("class" not in selected)