diff --git a/requirements-pinned.txt b/requirements-pinned.txt
index ace35039bc..14e2936c1c 100644
--- a/requirements-pinned.txt
+++ b/requirements-pinned.txt
@@ -1,4 +1,4 @@
-certifi==2021.5.30        # via requests
+certifi==2021.10.8        # via requests
 cffi==1.15.0              # via cryptography, pynacl
 charset-normalizer==2.0.6 # via requests
 cryptography==35.0.0       # via securesystemslib