diff --git a/requirements.txt b/requirements.txt
index c2a761b..9fe503b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ paho-mqtt~=2.0
 requests~=2.0
 SungrowClient>=0.1.0
 influxdb-client~=1.0
+urllib3>=2.6.3 # not directly required, pinned by Snyk to avoid a vulnerability