diff --git a/requirements.txt b/requirements.txt
index 2f39a56..3726651 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
 eth-account
-web3
\ No newline at end of file
+web3
+urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file