diff --git a/requirements.txt b/requirements.txt
index 0bb6ea8..b73d169 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 makeelf
 esptool
 hexdump
+cryptography>=48.0.1 # not directly required, pinned by Snyk to avoid a vulnerability