diff --git a/tools/ci/requirements_tc.txt b/tools/ci/requirements_tc.txt
index a70216679708b4..ec20a4417879df 100644
--- a/tools/ci/requirements_tc.txt
+++ b/tools/ci/requirements_tc.txt
@@ -1,4 +1,4 @@
 pygithub==2.6.1
 pyyaml==6.0.1
 requests==2.32.3
-taskcluster==68.0.4
+taskcluster==83.5.1
diff --git a/tools/requirements_tests.txt b/tools/requirements_tests.txt
index 9bb2dceafe4e5d..46b62ed140839c 100644
--- a/tools/requirements_tests.txt
+++ b/tools/requirements_tests.txt
@@ -2,5 +2,5 @@ httpx[http2]==0.27.2
 json-e==4.7.0
 jsonschema==4.17.3
 pyyaml==6.0.1
-taskcluster==68.0.4
+taskcluster==83.5.1
 mozterm==1.0.0