diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/client/client_observed.go b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/client/client_observed.go
index 5feb4f8d0..bc9af43d4 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/client/client_observed.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/client/client_observed.go
@@ -2,6 +2,7 @@ package client
 
 import (
 	"context"
+
 	"github.com/cloudevents/sdk-go/v2/event"
 	"github.com/cloudevents/sdk-go/v2/extensions"
 	"github.com/cloudevents/sdk-go/v2/observability"
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/client/observability.go b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/client/observability.go
index 4c1905957..6e36fcd7f 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/client/observability.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/client/observability.go
@@ -2,6 +2,7 @@ package client
 
 import (
 	"context"
+
 	"github.com/cloudevents/sdk-go/v2/event"
 	"github.com/cloudevents/sdk-go/v2/extensions"
 	"github.com/cloudevents/sdk-go/v2/observability"
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/client/options.go b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/client/options.go
index 3a1b40fe9..b93b840e5 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/client/options.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/client/options.go
@@ -2,6 +2,7 @@ package client
 
 import (
 	"fmt"
+
 	"github.com/cloudevents/sdk-go/v2/binding"
 )
 
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/event/datacodec/json/data_observed.go b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/event/datacodec/json/data_observed.go
index 21308ce86..defa8dca8 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/event/datacodec/json/data_observed.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/event/datacodec/json/data_observed.go
@@ -2,6 +2,7 @@ package json
 
 import (
 	"context"
+
 	"github.com/cloudevents/sdk-go/v2/observability"
 )
 
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/event/datacodec/text/data_observed.go b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/event/datacodec/text/data_observed.go
index 2897ea6b2..845f1e99c 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/event/datacodec/text/data_observed.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/event/datacodec/text/data_observed.go
@@ -2,6 +2,7 @@ package text
 
 import (
 	"context"
+
 	"github.com/cloudevents/sdk-go/v2/observability"
 )
 
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/event/datacodec/xml/data_observed.go b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/event/datacodec/xml/data_observed.go
index 14f6c2824..e87fd3e65 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/event/datacodec/xml/data_observed.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/event/datacodec/xml/data_observed.go
@@ -2,6 +2,7 @@ package xml
 
 import (
 	"context"
+
 	"github.com/cloudevents/sdk-go/v2/observability"
 )
 
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/protocol/http/protocol_retry.go b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/protocol/http/protocol_retry.go
index d3444b7cb..8c9769932 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/protocol/http/protocol_retry.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/cloudevents/sdk-go/v2/protocol/http/protocol_retry.go
@@ -3,11 +3,12 @@ package http
 import (
 	"context"
 	"errors"
-	"go.uber.org/zap"
 	"net/http"
 	"net/url"
 	"time"
 
+	"go.uber.org/zap"
+
 	"github.com/cloudevents/sdk-go/v2/binding"
 	cecontext "github.com/cloudevents/sdk-go/v2/context"
 	"github.com/cloudevents/sdk-go/v2/protocol"
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/google/uuid/node_js.go b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/google/uuid/node_js.go
index 24b78edc9..96090351a 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/google/uuid/node_js.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/google/uuid/node_js.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build js
 // +build js
 
 package uuid
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/google/uuid/node_net.go b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/google/uuid/node_net.go
index 0cbbcddbd..e91358f7d 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/google/uuid/node_net.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/google/uuid/node_net.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build !js
 // +build !js
 
 package uuid
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/pkg/errors/go113.go b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/pkg/errors/go113.go
index be0d10d0c..2c83c7245 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/pkg/errors/go113.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/github.com/pkg/errors/go113.go
@@ -1,3 +1,4 @@
+//go:build go1.13
 // +build go1.13
 
 package errors
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/tag/profile_19.go b/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/tag/profile_19.go
index b34d95e34..8fb17226f 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/tag/profile_19.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/tag/profile_19.go
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build go1.9
 // +build go1.9
 
 package tag
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/tag/profile_not19.go b/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/tag/profile_not19.go
index 83adbce56..e28cf13cd 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/tag/profile_not19.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/tag/profile_not19.go
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !go1.9
 // +build !go1.9
 
 package tag
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/trace/trace_go11.go b/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/trace/trace_go11.go
index b7d8aaf28..b8fc1e495 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/trace/trace_go11.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/trace/trace_go11.go
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build go1.11
 // +build go1.11
 
 package trace
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/trace/trace_nongo11.go b/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/trace/trace_nongo11.go
index e25419859..da488fc87 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/trace/trace_nongo11.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/go.opencensus.io/trace/trace_nongo11.go
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !go1.11
 // +build !go1.11
 
 package trace
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/go.uber.org/zap/global_go112.go b/code-samples/eventing/helloworld/helloworld-go/vendor/go.uber.org/zap/global_go112.go
index 6b5dbda80..fb11f7390 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/go.uber.org/zap/global_go112.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/go.uber.org/zap/global_go112.go
@@ -19,6 +19,7 @@
 // THE SOFTWARE.
 
 // See #682 for more information.
+//go:build go1.12
 // +build go1.12
 
 package zap
diff --git a/code-samples/eventing/helloworld/helloworld-go/vendor/go.uber.org/zap/global_prego112.go b/code-samples/eventing/helloworld/helloworld-go/vendor/go.uber.org/zap/global_prego112.go
index d3ab9af93..e452fd53b 100644
--- a/code-samples/eventing/helloworld/helloworld-go/vendor/go.uber.org/zap/global_prego112.go
+++ b/code-samples/eventing/helloworld/helloworld-go/vendor/go.uber.org/zap/global_prego112.go
@@ -19,6 +19,7 @@
 // THE SOFTWARE.
 
 // See #682 for more information.
+//go:build !go1.12
 // +build !go1.12
 
 package zap