diff --git a/ci/requirements.txt b/ci/requirements.txt
index a5ca85d5f..ba3dd9185 100644
--- a/ci/requirements.txt
+++ b/ci/requirements.txt
@@ -7,3 +7,4 @@ cryptography>=39.0.1 # not directly required, pinned by Snyk to avoid a vulnerab
 requests>=2.31.0 # not directly required, pinned by Snyk to avoid a vulnerability
 pygments>=2.15.0 # not directly required, pinned by Snyk to avoid a vulnerability
 protobuf>=4.25.8 # not directly required, pinned by Snyk to avoid a vulnerability
+filelock>=3.20.1 # not directly required, pinned by Snyk to avoid a vulnerability