diff --git a/database/firebird/firebird.go b/database/firebird/firebird.go
index 41ccc33d3..9ee833649 100644
--- a/database/firebird/firebird.go
+++ b/database/firebird/firebird.go
@@ -1,3 +1,4 @@
+//go:build go1.9
 // +build go1.9
 
 package firebird
diff --git a/database/mysql/mysql.go b/database/mysql/mysql.go
index 5eb15ff94..14b15390e 100644
--- a/database/mysql/mysql.go
+++ b/database/mysql/mysql.go
@@ -1,3 +1,4 @@
+//go:build go1.9
 // +build go1.9
 
 package mysql
diff --git a/database/pgx/pgx.go b/database/pgx/pgx.go
index fe709ef04..2fffe54df 100644
--- a/database/pgx/pgx.go
+++ b/database/pgx/pgx.go
@@ -1,3 +1,4 @@
+//go:build go1.9
 // +build go1.9
 
 package pgx
diff --git a/database/postgres/postgres.go b/database/postgres/postgres.go
index d59bfb524..82919171d 100644
--- a/database/postgres/postgres.go
+++ b/database/postgres/postgres.go
@@ -1,3 +1,4 @@
+//go:build go1.9
 // +build go1.9
 
 package postgres
diff --git a/database/redshift/redshift.go b/database/redshift/redshift.go
index d4539b8a2..04bee121d 100644
--- a/database/redshift/redshift.go
+++ b/database/redshift/redshift.go
@@ -1,3 +1,4 @@
+//go:build go1.9
 // +build go1.9
 
 package redshift
diff --git a/source/file/file_go116.go b/source/file/file_go116.go
index 5203b4bdb..3e6bddcfd 100644
--- a/source/file/file_go116.go
+++ b/source/file/file_go116.go
@@ -1,3 +1,4 @@
+//go:build go1.16
 // +build go1.16
 
 package file
diff --git a/source/iofs/example_test.go b/source/iofs/example_test.go
index 87d4e568b..474fc633c 100644
--- a/source/iofs/example_test.go
+++ b/source/iofs/example_test.go
@@ -1,3 +1,4 @@
+//go:build go1.16
 // +build go1.16
 
 package iofs_test
diff --git a/source/iofs/iofs.go b/source/iofs/iofs.go
index f76e44387..dc934a5fe 100644
--- a/source/iofs/iofs.go
+++ b/source/iofs/iofs.go
@@ -1,3 +1,4 @@
+//go:build go1.16
 // +build go1.16
 
 package iofs
diff --git a/source/iofs/iofs_test.go b/source/iofs/iofs_test.go
index f885fe762..d5b0ea019 100644
--- a/source/iofs/iofs_test.go
+++ b/source/iofs/iofs_test.go
@@ -1,3 +1,4 @@
+//go:build go1.16
 // +build go1.16
 
 package iofs_test