diff --git a/helm/oncall/tests/__snapshot__/telegram_polling_deployment_test.yaml.snap b/helm/oncall/tests/__snapshot__/telegram_polling_deployment_test.yaml.snap
index 18e4e440..93c870c5 100644
--- a/helm/oncall/tests/__snapshot__/telegram_polling_deployment_test.yaml.snap
+++ b/helm/oncall/tests/__snapshot__/telegram_polling_deployment_test.yaml.snap
@@ -67,7 +67,7 @@ telegramPolling.enabled=true -> should create telegram polling deployment:
           value: amqp
         - name: RABBITMQ_VHOST
           value: ""
-      image: grafana/oncall:v1.3.20
+      image: grafana/oncall:v1.2.36
       imagePullPolicy: Always
       name: telegram-polling
       securityContext: {}
diff --git a/helm/oncall/tests/telegram_polling_deployment_test.yaml b/helm/oncall/tests/telegram_polling_deployment_test.yaml
index 96fb8d01..874955e3 100644
--- a/helm/oncall/tests/telegram_polling_deployment_test.yaml
+++ b/helm/oncall/tests/telegram_polling_deployment_test.yaml
@@ -3,6 +3,8 @@ templates:
   - telegram-polling/deployment.yaml
 release:
   name: oncall
+chart:
+  appVersion: v1.2.36
 tests:
   - it: telegramPolling.enabled=false -> should not create deployment (default)
     asserts: