diff --git a/requirements.txt b/requirements.txt
index 74f1089..8436a73 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,4 +12,5 @@ yoomoney
 geopy
 coinbase
 base58
-tronpy
\ No newline at end of file
+tronpy
+h11>=0.16.0 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file