diff --git a/tag/profile_19.go b/tag/profile_19.go
index b34d95e34..8fb17226f 100644
--- a/tag/profile_19.go
+++ b/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/tag/profile_not19.go b/tag/profile_not19.go
index 83adbce56..e28cf13cd 100644
--- a/tag/profile_not19.go
+++ b/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/trace/trace_go11.go b/trace/trace_go11.go
index b7d8aaf28..b8fc1e495 100644
--- a/trace/trace_go11.go
+++ b/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/trace/trace_nongo11.go b/trace/trace_nongo11.go
index e25419859..da488fc87 100644
--- a/trace/trace_nongo11.go
+++ b/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