diff --git a/requirements.txt b/requirements.txt
index 4abc8e9..05bc403 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,5 @@ capstone~=4.0.1
 keystone~=20.0.0
 keystone_engine==0.9.2
 lighthouse
-pwn==1.0
\ No newline at end of file
+pwn==1.0
+unicorn>=2.1.3 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file