diff --git a/hack/lib/tilt/Tiltfile b/hack/lib/tilt/Tiltfile
index c1c40bf7..f97b8e5c 100644
--- a/hack/lib/tilt/Tiltfile
+++ b/hack/lib/tilt/Tiltfile
@@ -25,7 +25,7 @@ local_resource(
 # Render the IDP installation manifest using ytt.
 k8s_yaml(local(['ytt',
     '--file', '../../../test/deploy/dex',
-    '--data-value', 'supervisor_redirect_uri=https://pinniped-supervisor-clusterip.supervisor.svc.cluster.local/some/path/callback',
+    '--data-value-yaml', 'supervisor_redirect_uris=[https://pinniped-supervisor-clusterip.supervisor.svc.cluster.local/some/path/callback]',
 ]))
 # Tell tilt to watch all of those files for changes.
 watch_file('../../../test/deploy/dex')
diff --git a/hack/prepare-for-integration-tests.sh b/hack/prepare-for-integration-tests.sh
index 21e99aa4..8eb07b54 100755
--- a/hack/prepare-for-integration-tests.sh
+++ b/hack/prepare-for-integration-tests.sh
@@ -185,7 +185,7 @@ if ! tilt_mode; then
   log_note "Deploying Dex to the cluster..."
   ytt --file . >"$manifest"
   ytt --file . \
-    --data-value "supervisor_redirect_uri=https://pinniped-supervisor-clusterip.supervisor.svc.cluster.local/some/path/callback" \
+    --data-value-yaml "supervisor_redirect_uris=[https://pinniped-supervisor-clusterip.supervisor.svc.cluster.local/some/path/callback]" \
     >"$manifest"
 
   kubectl apply --dry-run=client -f "$manifest" # Validate manifest schema.
diff --git a/test/deploy/dex/dex.yaml b/test/deploy/dex/dex.yaml
index 9f7e4c41..624e14c9 100644
--- a/test/deploy/dex/dex.yaml
+++ b/test/deploy/dex/dex.yaml
@@ -1,4 +1,4 @@
-#! Copyright 2020 the Pinniped contributors. All Rights Reserved.
+#! Copyright 2020-2021 the Pinniped contributors. All Rights Reserved.
 #! SPDX-License-Identifier: Apache-2.0
 
 #@ load("@ytt:data", "data")
@@ -27,8 +27,7 @@ staticClients:
 - id: pinniped-supervisor
   name: 'Pinniped Supervisor'
   secret: pinniped-supervisor-secret
-  redirectURIs:
-  - #@ data.values.supervisor_redirect_uri
+  redirectURIs: #@ data.values.supervisor_redirect_uris
 enablePasswordDB: true
 staticPasswords:
 - username: "pinny"
@@ -114,4 +113,3 @@ spec:
   - name: https
     port: 443
     targetPort: 8443
-
diff --git a/test/deploy/dex/values.yaml b/test/deploy/dex/values.yaml
index 8bb90da5..56e72c36 100644
--- a/test/deploy/dex/values.yaml
+++ b/test/deploy/dex/values.yaml
@@ -1,4 +1,4 @@
-#! Copyright 2020 the Pinniped contributors. All Rights Reserved.
+#! Copyright 2020-2021 the Pinniped contributors. All Rights Reserved.
 #! SPDX-License-Identifier: Apache-2.0
 
 #@data/values
@@ -16,4 +16,6 @@ ports:
   #! our Kind configuration which maps 127.0.0.1:12346 to port 31235 on the Kind worker node.
   local: 12346
 
-supervisor_redirect_uri: ""
\ No newline at end of file
+#! supervisor_redirect_uris is an array of redirect uris that dex will use for its pinniped-supervisor client.
+#! usage: --data-value-yaml "supervisor_redirect_uris=[some-redirect.com,some-other-redirect.com]"
+supervisor_redirect_uris: []