diff --git a/requirements.txt b/requirements.txt
index 60b5a1ba0..0230169c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,3 +17,8 @@ pytest==4.2.0
 pytest-xdist==1.26.1
 nose==1.3.7
 pyyaml==5.1
+pygments>=2.15.0 # not directly required, pinned by Snyk to avoid a vulnerability
+requests>=2.31.0 # not directly required, pinned by Snyk to avoid a vulnerability
+rsa>=4.7 # not directly required, pinned by Snyk to avoid a vulnerability
+setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability
+sphinx>=3.3.0 # not directly required, pinned by Snyk to avoid a vulnerability