diff --git a/report/requirements.txt b/report/requirements.txt
index 04ec62dba..329b01f28 100644
--- a/report/requirements.txt
+++ b/report/requirements.txt
@@ -1,4 +1,4 @@
 python-magic==0.4.27
 taskcluster==47.1.2
 tenacity==8.2.2
-zstandard==0.20.0
+zstandard==0.21.0