diff --git a/taskcluster/requirements.txt b/taskcluster/requirements.txt
index 1053e8a..5b7eb1e 100644
--- a/taskcluster/requirements.txt
+++ b/taskcluster/requirements.txt
@@ -12,9 +12,9 @@ attrs==22.1.0 \
     --hash=sha256:29adc2665447e5191d0e7c568fde78b21f9672d344281d0c6e1ab085429b22b6 \
     --hash=sha256:86efa402f67bf2df34f51a335487cf46b1ec130d02b8d39fd248abfd30da551c
     # via taskcluster-taskgraph
-certifi==2022.9.24 \
-    --hash=sha256:0d9c601124e5a6ba9712dbc60d9c53c21e34f5f641fe83002317394311bdce14 \
-    --hash=sha256:90c1a32f1d68f940488354e36370f6cca89f0f106db09518524c88d6ed83f382
+certifi==2022.12.7 \
+    --hash=sha256:35824b4c3a97115964b408844d64aa14db1cc518f6562e8d7261699d1350a9e3 \
+    --hash=sha256:4ad3232f5e926d6718ec31cfc1fcadfde020920e278684144551c91769c7bc18
     # via requests
 charset-normalizer==2.1.1 \
     --hash=sha256:5a3d016c7c547f69d6f81fb0db9449ce888b418b5b9952cc5e6e66843e9dd845 \