diff --git a/requirements.txt b/requirements.txt
index 1caa759..e7a4cde 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,3 +2,4 @@ voluptuous==0.11.7
 requests==2.22.0
 elasticsearch==7.0.1
 pyyaml>=4.2b1
+urllib3>=1.26.18 # not directly required, pinned by Snyk to avoid a vulnerability