diff --git a/requirements.txt b/requirements.txt
index 12001c4e..4f449e67 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,5 @@
 coloredlogs
 requests
 web3
-timeout_decorator
\ No newline at end of file
+timeout_decorator
+aiohttp>=3.9.0 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file