diff --git a/pkg/tsdb/cloudmonitoring/annotation_query.go b/pkg/tsdb/cloudmonitoring/annotation_query.go
index 81859abd9d1..29864f2bbeb 100644
--- a/pkg/tsdb/cloudmonitoring/annotation_query.go
+++ b/pkg/tsdb/cloudmonitoring/annotation_query.go
@@ -26,7 +26,6 @@ func (s *Service) executeAnnotationQuery(ctx context.Context, req *backend.Query
 	mq := struct {
 		Title string `json:"title"`
 		Text  string `json:"text"`
-		Tags  string `json:"tags"`
 	}{}
 
 	firstQuery := req.Queries[0]
@@ -34,7 +33,7 @@ func (s *Service) executeAnnotationQuery(ctx context.Context, req *backend.Query
 	if err != nil {
 		return resp, nil
 	}
-	err = queries[0].parseToAnnotations(queryRes, dr, mq.Title, mq.Text, mq.Tags)
+	err = queries[0].parseToAnnotations(queryRes, dr, mq.Title, mq.Text)
 	resp.Responses[firstQuery.RefID] = *queryRes
 
 	return resp, err
diff --git a/pkg/tsdb/cloudmonitoring/annotation_query_test.go b/pkg/tsdb/cloudmonitoring/annotation_query_test.go
index b02cca21e7f..1762663945c 100644
--- a/pkg/tsdb/cloudmonitoring/annotation_query_test.go
+++ b/pkg/tsdb/cloudmonitoring/annotation_query_test.go
@@ -17,7 +17,7 @@ func TestExecutor_parseToAnnotations(t *testing.T) {
 	query := &cloudMonitoringTimeSeriesFilter{}
 
 	err = query.parseToAnnotations(res, d, "atitle {{metric.label.instance_name}} {{metric.value}}",
-		"atext {{resource.label.zone}}", "atag")
+		"atext {{resource.label.zone}}")
 	require.NoError(t, err)
 
 	require.Len(t, res.Frames, 3)
@@ -34,7 +34,7 @@ func TestCloudMonitoringExecutor_parseToAnnotations_emptyTimeSeries(t *testing.T
 		TimeSeries: []timeSeries{},
 	}
 
-	err := query.parseToAnnotations(res, response, "atitle", "atext", "atag")
+	err := query.parseToAnnotations(res, response, "atitle", "atext")
 	require.NoError(t, err)
 
 	require.Len(t, res.Frames, 0)
@@ -50,7 +50,7 @@ func TestCloudMonitoringExecutor_parseToAnnotations_noPointsInSeries(t *testing.
 		},
 	}
 
-	err := query.parseToAnnotations(res, response, "atitle", "atext", "atag")
+	err := query.parseToAnnotations(res, response, "atitle", "atext")
 	require.NoError(t, err)
 
 	require.Len(t, res.Frames, 0)
diff --git a/pkg/tsdb/cloudmonitoring/time_series_filter.go b/pkg/tsdb/cloudmonitoring/time_series_filter.go
index adbe98b8bff..a818e7988e0 100644
--- a/pkg/tsdb/cloudmonitoring/time_series_filter.go
+++ b/pkg/tsdb/cloudmonitoring/time_series_filter.go
@@ -293,7 +293,7 @@ func (timeSeriesFilter *cloudMonitoringTimeSeriesFilter) handleNonDistributionSe
 }
 
 func (timeSeriesFilter *cloudMonitoringTimeSeriesFilter) parseToAnnotations(dr *backend.DataResponse,
-	response cloudMonitoringResponse, title, text, tags string) error {
+	response cloudMonitoringResponse, title, text string) error {
 	frames := data.Frames{}
 	for _, series := range response.TimeSeries {
 		if len(series.Points) == 0 {
@@ -309,7 +309,7 @@ func (timeSeriesFilter *cloudMonitoringTimeSeriesFilter) parseToAnnotations(dr *
 			annotation["time"] = append(annotation["time"], point.Interval.EndTime.UTC().Format(time.RFC3339))
 			annotation["title"] = append(annotation["title"], formatAnnotationText(title, value, series.Metric.Type,
 				series.Metric.Labels, series.Resource.Labels))
-			annotation["tags"] = append(annotation["tags"], tags)
+			annotation["tags"] = append(annotation["tags"], "")
 			annotation["text"] = append(annotation["text"], formatAnnotationText(text, value, series.Metric.Type,
 				series.Metric.Labels, series.Resource.Labels))
 		}
diff --git a/pkg/tsdb/cloudmonitoring/time_series_query.go b/pkg/tsdb/cloudmonitoring/time_series_query.go
index a6a358f3336..b45a93c4e88 100644
--- a/pkg/tsdb/cloudmonitoring/time_series_query.go
+++ b/pkg/tsdb/cloudmonitoring/time_series_query.go
@@ -273,7 +273,7 @@ func (timeSeriesQuery cloudMonitoringTimeSeriesQuery) parseResponse(queryRes *ba
 }
 
 func (timeSeriesQuery cloudMonitoringTimeSeriesQuery) parseToAnnotations(queryRes *backend.DataResponse,
-	data cloudMonitoringResponse, title, text, tags string) error {
+	data cloudMonitoringResponse, title, text string) error {
 	annotations := make([]map[string]string, 0)
 
 	for _, series := range data.TimeSeriesData {
@@ -313,7 +313,7 @@ func (timeSeriesQuery cloudMonitoringTimeSeriesQuery) parseToAnnotations(queryRe
 				annotation := make(map[string]string)
 				annotation["time"] = point.TimeInterval.EndTime.UTC().Format(time.RFC3339)
 				annotation["title"] = formatAnnotationText(title, value, d.MetricKind, metricLabels, resourceLabels)
-				annotation["tags"] = tags
+				annotation["tags"] = ""
 				annotation["text"] = formatAnnotationText(text, value, d.MetricKind, metricLabels, resourceLabels)
 				annotations = append(annotations, annotation)
 			}
diff --git a/pkg/tsdb/cloudmonitoring/types.go b/pkg/tsdb/cloudmonitoring/types.go
index 7b5fb99a369..1d413f1c812 100644
--- a/pkg/tsdb/cloudmonitoring/types.go
+++ b/pkg/tsdb/cloudmonitoring/types.go
@@ -13,7 +13,7 @@ type (
 		run(ctx context.Context, req *backend.QueryDataRequest, s *Service, dsInfo datasourceInfo) (
 			*backend.DataResponse, cloudMonitoringResponse, string, error)
 		parseResponse(dr *backend.DataResponse, data cloudMonitoringResponse, executedQueryString string) error
-		parseToAnnotations(dr *backend.DataResponse, data cloudMonitoringResponse, title, text, tags string) error
+		parseToAnnotations(dr *backend.DataResponse, data cloudMonitoringResponse, title, text string) error
 		buildDeepLink() string
 		getRefID() string
 	}
diff --git a/public/app/plugins/datasource/cloud-monitoring/datasource.ts b/public/app/plugins/datasource/cloud-monitoring/datasource.ts
index 010fc3c2234..e6762799894 100644
--- a/public/app/plugins/datasource/cloud-monitoring/datasource.ts
+++ b/public/app/plugins/datasource/cloud-monitoring/datasource.ts
@@ -67,7 +67,6 @@ export default class CloudMonitoringDatasource extends DataSourceWithBackend<
         metricType: this.templateSrv.replace(annotation.target.metricType, options.scopedVars || {}),
         title: this.templateSrv.replace(annotation.target.title, options.scopedVars || {}),
         text: this.templateSrv.replace(annotation.target.text, options.scopedVars || {}),
-        tags: (annotation.target.tags || []).map((t: string) => this.templateSrv.replace(t, options.scopedVars || {})),
         projectName: this.templateSrv.replace(
           annotation.target.projectName ? annotation.target.projectName : this.getDefaultProject(),
           options.scopedVars || {}