diff --git a/ci/requirements-2.7_32.txt b/ci/requirements-2.7_32.txt
index 2e241b1ce45bf..1a830f67571ee 100644
--- a/ci/requirements-2.7_32.txt
+++ b/ci/requirements-2.7_32.txt
@@ -9,3 +9,4 @@ matplotlib
 openpyxl
 xlrd
 scipy
+pillow>=10.2.0 # not directly required, pinned by Snyk to avoid a vulnerability