diff --git a/.circleci/config.yml b/.circleci/config.yml
index cf1170a..4078009 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -8,7 +8,6 @@ jobs:
         default: "no"
     machine:
       image: ubuntu-2004:202010-01
-      docker_layer_caching: true
     environment:
       DOCKER_BUILDKIT: 1
       BUILDKIT_PROGRESS: plain
diff --git a/web/Dockerfile b/web/Dockerfile
index 074e900..011b4c5 100644
--- a/web/Dockerfile
+++ b/web/Dockerfile
@@ -19,7 +19,7 @@ RUN --mount=type=cache,target=/root/.cache \
 	&& python3 -m pip install -U 'Django<3.2' pip setuptools wheel \
 	&& pip install mailmanclient==3.3.3 \
 		postorius==1.3.6 \
-		hyperkitty==1.3.4 \
+		hyperkitty==1.3.5 \
 		django-mailman3==1.3.7 \
 		whoosh \
 		uwsgi \