diff --git a/requirements.txt b/requirements.txt
index dc430df..95bec43 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 python-dotenv==0.20.0
 requests==2.27.1
 twilio==7.8.1
+urllib3>=2.6.0 # not directly required, pinned by Snyk to avoid a vulnerability