diff --git a/requirements.txt b/requirements.txt
index 67f853e..bcb2c15 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,3 +23,5 @@ pycountry==18.5.26
 tabulate==0.7.7
 
 git+https://github.com/nanjiangshu/libpredweb.git@master
+
+urllib3>=1.25.9 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file