diff --git a/CHANGELOG.md b/CHANGELOG.md
index acdf6c55b2..0e98d909b3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,8 @@ release.
   ([#853](https://github.com/open-telemetry/opentelemetry-demo/pull/853))
 * [chore] use `otel-demo` namespace for generated kubernetes manifests
   ([#848](https://github.com/open-telemetry/opentelemetry-demo/pull/848))
+* [collector] update collector version to 0.76.1 and remove connectors feature gate.
+  ([#857](https://github.com/open-telemetry/opentelemetry-demo/pull/857))
 
 ## 1.4.0
 
diff --git a/docker-compose.yml b/docker-compose.yml
index e21afb41f1..70bc4bc182 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -616,14 +616,14 @@ services:
 
   # OpenTelemetry Collector
   otelcol:
-    image: otel/opentelemetry-collector-contrib:0.75.0
+    image: otel/opentelemetry-collector-contrib:0.76.1
     container_name: otel-col
     deploy:
       resources:
         limits:
           memory: 125M
     restart: unless-stopped
-    command: [ "--feature-gates=service.connectors", "--config=/etc/otelcol-config.yml", "--config=/etc/otelcol-config-extras.yml" ]
+    command: [ "--config=/etc/otelcol-config.yml", "--config=/etc/otelcol-config-extras.yml" ]
     volumes:
       - ./src/otelcollector/otelcol-config.yml:/etc/otelcol-config.yml
       - ./src/otelcollector/otelcol-config-extras.yml:/etc/otelcol-config-extras.yml
diff --git a/src/grafana/provisioning/dashboards/general/spanmetrics-dashboard.json b/src/grafana/provisioning/dashboards/general/spanmetrics-dashboard.json
index 0a82318232..be3b329b21 100644
--- a/src/grafana/provisioning/dashboards/general/spanmetrics-dashboard.json
+++ b/src/grafana/provisioning/dashboards/general/spanmetrics-dashboard.json
@@ -113,7 +113,7 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "topk(7,histogram_quantile(0.50, sum(rate(duration_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])) by (le,service_name)))",
+          "expr": "topk(7,histogram_quantile(0.50, sum(rate(duration_milliseconds_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])) by (le,service_name)))",
           "format": "time_series",
           "hide": true,
           "instant": false,
@@ -129,7 +129,7 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "topk(7,histogram_quantile(0.95, sum(rate(duration_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__range])) by (le,service_name)))",
+          "expr": "topk(7,histogram_quantile(0.95, sum(rate(duration_milliseconds_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__range])) by (le,service_name)))",
           "hide": false,
           "instant": true,
           "interval": "",
@@ -144,7 +144,7 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "histogram_quantile(0.99, sum(rate(duration_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])) by (le,service_name))",
+          "expr": "histogram_quantile(0.99, sum(rate(duration_milliseconds_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])) by (le,service_name))",
           "hide": true,
           "interval": "",
           "legendFormat": "quantile99",
@@ -158,7 +158,7 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "histogram_quantile(0.999, sum(rate(duration_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])) by (le,service_name))",
+          "expr": "histogram_quantile(0.999, sum(rate(duration_milliseconds_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])) by (le,service_name))",
           "hide": true,
           "interval": "",
           "legendFormat": "quantile999",
@@ -238,7 +238,7 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "topk(7,sum by (service_name) (rate(calls{service_name=~\"$service\", span_name=~\"$span_name\"}[$__range])))",
+          "expr": "topk(7,sum by (service_name) (rate(calls_total{service_name=~\"$service\", span_name=~\"$span_name\"}[$__range])))",
           "format": "time_series",
           "instant": true,
           "interval": "",
@@ -316,7 +316,7 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "topk(7,sum(rate(calls{status_code=\"STATUS_CODE_ERROR\",service_name=~\"$service\", span_name=~\"$span_name\"}[$__range])) by (service_name))",
+          "expr": "topk(7,sum(rate(calls_total{status_code=\"STATUS_CODE_ERROR\",service_name=~\"$service\", span_name=~\"$span_name\"}[$__range])) by (service_name))",
           "instant": true,
           "interval": "",
           "legendFormat": "{{service_name}}",
@@ -489,7 +489,7 @@
             "uid": "webstore-metrics"
           },
           "exemplar": false,
-          "expr": "topk(7, sum(rate(calls{service_name=~\"$service\", span_name=~\"$span_name\"}[$__range])) by (span_name,service_name)) ",
+          "expr": "topk(7, sum(rate(calls_total{service_name=~\"$service\", span_name=~\"$span_name\"}[$__range])) by (span_name,service_name)) ",
           "format": "table",
           "instant": true,
           "interval": "",
@@ -502,7 +502,7 @@
             "uid": "webstore-metrics"
           },
           "exemplar": false,
-          "expr": "topk(7, sum(rate(calls{status_code=\"STATUS_CODE_ERROR\",service_name=~\"$service\", span_name=~\"$span_name\"}[$__range])) by (span_name,service_name))",
+          "expr": "topk(7, sum(rate(calls_total{status_code=\"STATUS_CODE_ERROR\",service_name=~\"$service\", span_name=~\"$span_name\"}[$__range])) by (span_name,service_name))",
           "format": "table",
           "hide": false,
           "instant": true,
@@ -696,7 +696,7 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "topk(7,histogram_quantile(0.50, sum(rate(duration_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])) by (le,service_name)))",
+          "expr": "topk(7,histogram_quantile(0.50, sum(rate(duration_milliseconds_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])) by (le,service_name)))",
           "format": "time_series",
           "hide": true,
           "instant": false,
@@ -712,7 +712,7 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "topk(7,histogram_quantile(0.95, sum(rate(duration_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__range])) by (le,span_name)))",
+          "expr": "topk(7,histogram_quantile(0.95, sum(rate(duration_milliseconds_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__range])) by (le,span_name)))",
           "hide": false,
           "instant": true,
           "interval": "",
@@ -727,7 +727,7 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "histogram_quantile(0.99, sum(rate(duration_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])) by (le,service_name))",
+          "expr": "histogram_quantile(0.99, sum(rate(duration_milliseconds_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])) by (le,service_name))",
           "hide": true,
           "interval": "",
           "legendFormat": "quantile99",
@@ -741,7 +741,7 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "histogram_quantile(0.999, sum(rate(duration_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])) by (le,service_name))",
+          "expr": "histogram_quantile(0.999, sum(rate(duration_milliseconds_bucket{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])) by (le,service_name))",
           "hide": true,
           "interval": "",
           "legendFormat": "quantile999",
@@ -812,7 +812,7 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "topk(7, sum by (span_name,service_name)(increase(duration_sum{service_name=~\"${service}\", span_name=~\"$span_name\"}[5m]) / increase(duration_count{service_name=~\"${service}\",span_name=~\"$span_name\"}[5m\n])))",
+          "expr": "topk(7, sum by (span_name,service_name)(increase(duration_milliseconds_sum{service_name=~\"${service}\", span_name=~\"$span_name\"}[5m]) / increase(duration_milliseconds_count{service_name=~\"${service}\",span_name=~\"$span_name\"}[5m\n])))",
           "instant": true,
           "interval": "",
           "legendFormat": "{{span_name}} [{{service_name}}]",
@@ -916,7 +916,7 @@
           },
           "editorMode": "code",
           "exemplar": true,
-          "expr": "topk(7,sum by (span_name,service_name)(increase(duration_sum{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval]) / increase(duration_count{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])))",
+          "expr": "topk(7,sum by (span_name,service_name)(increase(duration_milliseconds_sum{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval]) / increase(duration_milliseconds_count{service_name=~\"$service\", span_name=~\"$span_name\"}[$__rate_interval])))",
           "instant": false,
           "interval": "",
           "legendFormat": "[{{service_name}}]  {{span_name}}",
@@ -945,14 +945,14 @@
           "type": "prometheus",
           "uid": "webstore-metrics"
         },
-        "definition": "query_result(count by (service_name)(count_over_time(calls[$__range])))",
+        "definition": "query_result(count by (service_name)(count_over_time(calls_total[$__range])))",
         "hide": 0,
         "includeAll": true,
         "multi": true,
         "name": "service",
         "options": [],
         "query": {
-          "query": "query_result(count by (service_name)(count_over_time(calls[$__range])))",
+          "query": "query_result(count by (service_name)(count_over_time(calls_total[$__range])))",
           "refId": "StandardVariableQuery"
         },
         "refresh": 2,
@@ -972,14 +972,14 @@
           "type": "prometheus",
           "uid": "webstore-metrics"
         },
-        "definition": "query_result(sum ({__name__=~\".*calls\",service_name=~\"$service\"})  by (span_name))",
+        "definition": "query_result(sum ({__name__=~\".*calls_total\",service_name=~\"$service\"})  by (span_name))",
         "hide": 0,
         "includeAll": true,
         "multi": true,
         "name": "span_name",
         "options": [],
         "query": {
-          "query": "query_result(sum ({__name__=~\".*calls\",service_name=~\"$service\"})  by (span_name))",
+          "query": "query_result(sum ({__name__=~\".*calls_total\",service_name=~\"$service\"})  by (span_name))",
           "refId": "StandardVariableQuery"
         },
         "refresh": 2,