diff --git a/poky/documentation/conf.py b/poky/documentation/conf.py
index baf550e..2a01756 100644
--- a/poky/documentation/conf.py
+++ b/poky/documentation/conf.py
@@ -53,7 +53,7 @@
 # -- General configuration ---------------------------------------------------
 
 # Prevent building with an outdated version of sphinx
-needs_sphinx = "3.1"
+needs_sphinx = "4.0"
 
 # to load local extension from the folder 'sphinx'
 sys.path.insert(0, os.path.abspath('sphinx'))
@@ -90,7 +90,7 @@
 
 # external links and substitutions
 extlinks = {
-    'cve': ('https://nvd.nist.gov/vuln/detail/CVE-%s', 'CVE-'),
+    'cve': ('https://nvd.nist.gov/vuln/detail/CVE-%s', 'CVE-%s'),
     'yocto_home': ('https://www.yoctoproject.org%s', None),
     'yocto_wiki': ('https://wiki.yoctoproject.org/wiki%s', None),
     'yocto_dl': ('https://downloads.yoctoproject.org%s', None),