diff --git a/requirements/common.in b/requirements/common.in
index 4aed8d3c69f..addafaedb43 100644
--- a/requirements/common.in
+++ b/requirements/common.in
@@ -24,7 +24,7 @@ python-dateutil==2.9.0.post0
 django-filter==25.1  # Listed in DEFAULT_FILTER_BACKENDS on settings.py
 django-redis==6.0.0  # Listed in CACHES on settings.py
 
-taskcluster==85.0.1  # import taskcluster
+taskcluster==86.0.0  # import taskcluster
 python-jose[pycryptodome]==3.5.0  # from jose import jwt
 
 furl==2.1.4  # Imported as furl
diff --git a/requirements/common.txt b/requirements/common.txt
index ecd06cf3f35..adcf286e5a0 100644
--- a/requirements/common.txt
+++ b/requirements/common.txt
@@ -1799,9 +1799,9 @@ tabulate==0.9.0 \
     --hash=sha256:0095b12bf5966de529c0feb1fa08671671b3368eec77d7ef7ab114be2c068b3c \
     --hash=sha256:024ca478df22e9340661486f85298cff5f6dcdba14f3813e8830015b9ed1948f
     # via mozci
-taskcluster==85.0.1 \
-    --hash=sha256:1f855f973bf1ad8014213e204cf5cc10bf0c1eace18ddff9c09f422afddac231 \
-    --hash=sha256:9145e4df4f25f0b1e1370cb8265838b06c3451e975cd20980edfec47c10a52bc
+taskcluster==86.0.0 \
+    --hash=sha256:68fcb537c92c63039c97890bfb3221b3671b4820e52b9fd37d1009610bc364fe \
+    --hash=sha256:85243c9a6547925cca503f5fc1c620072b379fba09bb0eaae7589721506509a6
     # via
     #   -r requirements/common.in
     #   mozci