diff --git a/requirements.txt b/requirements.txt
index b2e4684..7a457dd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,7 @@
 
 # Base ----------------------------------------
 matplotlib>=3.2.2
+numpy>=1.22.2 # pinned by Snyk to avoid a vulnerability
 opencv-python>=4.6.0
 pillow>=7.1.2
 pyyaml>=5.3.1