diff --git a/testing/web-platform/tests/.taskcluster.yml b/testing/web-platform/tests/.taskcluster.yml
index 2a005df772fe..d9e5581861ee 100644
--- a/testing/web-platform/tests/.taskcluster.yml
+++ b/testing/web-platform/tests/.taskcluster.yml
@@ -57,7 +57,7 @@ tasks:
             owner: ${owner}
             source: ${event.repository.clone_url}
           payload:
-            image: webplatformtests/wpt:0.55
+            image: webplatformtests/wpt:0.56
             maxRunTime: 7200
             artifacts:
               public/results:
diff --git a/testing/web-platform/tests/tools/ci/tc/tasks/test.yml b/testing/web-platform/tests/tools/ci/tc/tasks/test.yml
index cdb6687d065d..79d510c671e2 100644
--- a/testing/web-platform/tests/tools/ci/tc/tasks/test.yml
+++ b/testing/web-platform/tests/tools/ci/tc/tasks/test.yml
@@ -4,7 +4,7 @@ components:
     workerType: ci
     schedulerId: taskcluster-github
     deadline: "24 hours"
-    image: webplatformtests/wpt:0.55
+    image: webplatformtests/wpt:0.56
     maxRunTime: 7200
     artifacts:
       public/results:
diff --git a/testing/web-platform/tests/tools/docker/Dockerfile b/testing/web-platform/tests/tools/docker/Dockerfile
index d54d8e94bd27..a9162559ab87 100644
--- a/testing/web-platform/tests/tools/docker/Dockerfile
+++ b/testing/web-platform/tests/tools/docker/Dockerfile
@@ -13,6 +13,7 @@ RUN apt-get -qqy update \
     curl \
     dbus-x11 \
     earlyoom \
+    fonts-noto \
     fluxbox \
     gdebi \
     git \