diff --git a/global-requirements.txt b/global-requirements.txt
index bd71a1d6ee..a7e1f30658 100644
--- a/global-requirements.txt
+++ b/global-requirements.txt
@@ -244,7 +244,15 @@ pyngus  # Apache-2.0
 pyOpenSSL  # Apache-2.0
 pyparsing  # MIT
 pyroute2!=0.5.4,!=0.5.5,!=0.7.1;sys_platform!='win32'  # Apache-2.0 (+ dual licensed GPL2)
+# pysnmp library is not maintained since 4 years, it is
+# not recommended to use it, use its fork pysnmp-lextudio instead
+# in conjunction with its dependencies pyasn1-lextudio and
+# pyasn1-modules-lextudio
 pysnmp  # BSD
+pysnmp-lextudio  # BSD
+pyasn1-lextudio  # BSD
+pyasn1-modules-lextudio  # BSD
+
 pystache  # MIT
 pysaml2!=4.0.3,!=4.0.4,!=4.0.5,!=4.0.5rc1,!=4.1.0,!=4.2.0,!=4.3.0,!=4.4.0,!=4.6.0  # Apache-2.0
 
diff --git a/upper-constraints.txt b/upper-constraints.txt
index e3c66781a3..0c77600894 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -72,6 +72,7 @@ nosehtmloutput===0.0.7
 waitress===2.1.2
 os-refresh-config===13.1.0
 pysnmp===4.4.12
+pysnmp-lextudio===5.0.26
 types-PyYAML===6.0.12.9
 Mako===1.2.4
 pyScss===1.4.0
@@ -437,6 +438,7 @@ pywinrm===0.4.3
 botocore===1.29.118
 xmltodict===0.13.0
 pyasn1===0.4.8
+pyasn1-lextudio===1.1.2
 directord===0.12.0
 oslo.rootwrap===7.0.1
 Django===3.2.18
@@ -513,6 +515,7 @@ mitba===1.1.1
 python-masakariclient===8.1.0
 Werkzeug===2.2.3
 pyasn1-modules===0.3.0
+pyasn1-modules-lextudio===0.2.9
 APScheduler===3.10.1
 xmlschema===2.2.3
 python-troveclient===8.1.0