diff --git a/tools/requirements.txt b/tools/requirements.txt
index 5ed1566b4..bc267a3e2 100644
--- a/tools/requirements.txt
+++ b/tools/requirements.txt
@@ -3,4 +3,4 @@ async-timeout==3.0.1
 logbook==1.5.3
 raven==6.10.0
 structlog==21.1.0
-taskcluster==42.1.1
+taskcluster==43.2.0