diff --git a/charts/tidepool/charts/data/templates/8-care-partner-alerts-kafka-connector.yaml b/charts/tidepool/charts/data/templates/8-care-partner-alerts-kafka-connector.yaml
index 62d936b3..e1929f72 100644
--- a/charts/tidepool/charts/data/templates/8-care-partner-alerts-kafka-connector.yaml
+++ b/charts/tidepool/charts/data/templates/8-care-partner-alerts-kafka-connector.yaml
@@ -15,10 +15,10 @@ spec:
     connection.uri: {{ .Values.global.kafka.connect.mongoConnectionUri }}
     copy.existing: true
     database: data
-    key.converter: org.apache.kafka.connect.json.JsonConverter
+    key.converter: org.apache.kafka.connect.storage.StringConverter
     key.converter.schemas.enable: false
     topic.prefix: {{ .Release.Namespace }}
-    value.converter: org.apache.kafka.connect.json.JsonConverter
+    value.converter: org.apache.kafka.connect.storage.StringConverter
     value.converter.schemas.enable: false
     heartbeat.interval.ms: {{ .Values.global.kafka.connect.mongoHeartbeatIntervalMs }}
     heartbeat.topic.name: {{ .Release.Namespace }}-{{ .Values.global.kafka.connect.clusterName }}-heartbeat
diff --git a/charts/tidepool/charts/data/templates/8-device-data-kafka-connector.yaml b/charts/tidepool/charts/data/templates/8-device-data-kafka-connector.yaml
index 5dbc824e..d3da975d 100644
--- a/charts/tidepool/charts/data/templates/8-device-data-kafka-connector.yaml
+++ b/charts/tidepool/charts/data/templates/8-device-data-kafka-connector.yaml
@@ -15,7 +15,7 @@ spec:
     connection.uri: {{ .Values.global.kafka.connect.mongoConnectionUri }}
     copy.existing: false
     database: data
-    key.converter: org.apache.kafka.connect.json.JsonConverter
+    key.converter: org.apache.kafka.connect.storage.StringConverter
     key.converter.schemas.enable: false
     pipeline: >-
       [
@@ -28,7 +28,7 @@ spec:
       ]
     topic.prefix: {{ .Release.Namespace }}
     topic.suffix: "alerts"
-    value.converter: org.apache.kafka.connect.json.JsonConverter
+    value.converter: org.apache.kafka.connect.storage.StringConverter
     value.converter.schemas.enable: false
     heartbeat.interval.ms: {{ .Values.global.kafka.connect.mongoHeartbeatIntervalMs }}
     heartbeat.topic.name: {{ .Release.Namespace }}-{{ .Values.global.kafka.connect.clusterName }}-heartbeat