diff --git a/requirements_gui.txt b/requirements_gui.txt
index ef23a4a..0e007fd 100644
--- a/requirements_gui.txt
+++ b/requirements_gui.txt
@@ -1,4 +1,5 @@
 kivy>=1.10.1
 cv2
 imageio
-pygame
\ No newline at end of file
+pygame
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file