diff --git a/.circleci/config.yml b/.circleci/config.yml
index 97152bea78..4ef5881105 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -108,7 +108,7 @@ jobs:
       - run:
           command: go install -mod=readonly github.com/google/go-jsonnet/cmd/jsonnet github.com/google/go-jsonnet/cmd/jsonnetfmt github.com/jsonnet-bundler/jsonnet-bundler/cmd/jb
           working_directory: ~/project/documentation/prometheus-mixin
-      -8716766cb49ab9dd7df5622d80bb217b94a21d0f3d3dc3d074c3ec7a0c7f67ea run:
+      - run:
           command: make clean
           working_directory: ~/project/documentation/prometheus-mixin
       - run:
diff --git a/cmd/prometheus/main_unix_test.go b/cmd/prometheus/main_unix_test.go
index 393c6f952c..7724f0dd13 100644
--- a/cmd/prometheus/main_unix_test.go
+++ b/cmd/prometheus/main_unix_test.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 //
+//go:build !windows
 // +build !windows
 
 package main
diff --git a/config/config_default_test.go b/config/config_default_test.go
index e0f09aa11b..f5333f4c88 100644
--- a/config/config_default_test.go
+++ b/config/config_default_test.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !windows
 // +build !windows
 
 package config
diff --git a/documentation/prometheus-mixin/tools.go b/documentation/prometheus-mixin/tools.go
index e3551e8219..1115bb9534 100644
--- a/documentation/prometheus-mixin/tools.go
+++ b/documentation/prometheus-mixin/tools.go
@@ -12,7 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-//+build tools
+//go:build tools
+// +build tools
 
 // Package tools tracks dependencies for tools that used in the build process.
 // See https://github.com/golang/go/issues/25922
diff --git a/pkg/runtime/limits_default.go b/pkg/runtime/limits_default.go
index 4f59b1c55d..c3e0b4701a 100644
--- a/pkg/runtime/limits_default.go
+++ b/pkg/runtime/limits_default.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !windows
 // +build !windows
 
 package runtime
diff --git a/pkg/runtime/limits_windows.go b/pkg/runtime/limits_windows.go
index d947e132ec..ce514949ee 100644
--- a/pkg/runtime/limits_windows.go
+++ b/pkg/runtime/limits_windows.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build windows
 // +build windows
 
 package runtime
diff --git a/pkg/runtime/statfs.go b/pkg/runtime/statfs.go
index 06522094eb..2e5a624b61 100644
--- a/pkg/runtime/statfs.go
+++ b/pkg/runtime/statfs.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build openbsd || windows || netbsd || solaris
 // +build openbsd windows netbsd solaris
 
 package runtime
diff --git a/pkg/runtime/statfs_default.go b/pkg/runtime/statfs_default.go
index 8ce7d8339f..a493a5cbb8 100644
--- a/pkg/runtime/statfs_default.go
+++ b/pkg/runtime/statfs_default.go
@@ -11,8 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build !windows,!openbsd,!netbsd,!solaris
-// +build !386
+//go:build !windows && !openbsd && !netbsd && !solaris && !386
+// +build !windows,!openbsd,!netbsd,!solaris,!386
 
 package runtime
 
diff --git a/pkg/runtime/statfs_linux_386.go b/pkg/runtime/statfs_linux_386.go
index ba90ca8a63..b45eecdd37 100644
--- a/pkg/runtime/statfs_linux_386.go
+++ b/pkg/runtime/statfs_linux_386.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build linux && 386
 // +build linux,386
 
 package runtime
diff --git a/pkg/runtime/statfs_uint32.go b/pkg/runtime/statfs_uint32.go
index 1a5557a8ce..fa10ebc967 100644
--- a/pkg/runtime/statfs_uint32.go
+++ b/pkg/runtime/statfs_uint32.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build (386 && darwin) || (386 && freebsd)
 // +build 386,darwin 386,freebsd
 
 package runtime
diff --git a/pkg/runtime/uname_default.go b/pkg/runtime/uname_default.go
index 595a4a28c7..1613371214 100644
--- a/pkg/runtime/uname_default.go
+++ b/pkg/runtime/uname_default.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !linux
 // +build !linux
 
 package runtime
diff --git a/pkg/runtime/vmlimits_default.go b/pkg/runtime/vmlimits_default.go
index 47c4dd7c91..bf35b48fe0 100644
--- a/pkg/runtime/vmlimits_default.go
+++ b/pkg/runtime/vmlimits_default.go
@@ -11,8 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// +build !windows
-// +build !openbsd
+//go:build !windows && !openbsd
+// +build !windows,!openbsd
 
 package runtime
 
diff --git a/pkg/runtime/vmlimits_openbsd.go b/pkg/runtime/vmlimits_openbsd.go
index f2117fe06b..e33ab48023 100644
--- a/pkg/runtime/vmlimits_openbsd.go
+++ b/pkg/runtime/vmlimits_openbsd.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build openbsd
 // +build openbsd
 
 package runtime
diff --git a/promql/fuzz.go b/promql/fuzz.go
index eeb1fede85..b34fbbc669 100644
--- a/promql/fuzz.go
+++ b/promql/fuzz.go
@@ -12,6 +12,7 @@
 // limitations under the License.
 
 // Only build when go-fuzz is in use
+//go:build gofuzz
 // +build gofuzz
 
 package promql
diff --git a/scripts/tools.go b/scripts/tools.go
index fda90e16af..52b4649112 100644
--- a/scripts/tools.go
+++ b/scripts/tools.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build tools
 // +build tools
 
 // Package tools tracks dependencies for tools that are required to generate the protobuf code.
diff --git a/tsdb/chunks/head_chunks_other.go b/tsdb/chunks/head_chunks_other.go
index a1de873707..8b37dd8c25 100644
--- a/tsdb/chunks/head_chunks_other.go
+++ b/tsdb/chunks/head_chunks_other.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !windows
 // +build !windows
 
 package chunks
diff --git a/tsdb/fileutil/dir_unix.go b/tsdb/fileutil/dir_unix.go
index 58a77dfc1a..db310014ef 100644
--- a/tsdb/fileutil/dir_unix.go
+++ b/tsdb/fileutil/dir_unix.go
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !windows
 // +build !windows
 
 package fileutil
diff --git a/tsdb/fileutil/dir_windows.go b/tsdb/fileutil/dir_windows.go
index c123395c00..f67cc74b31 100644
--- a/tsdb/fileutil/dir_windows.go
+++ b/tsdb/fileutil/dir_windows.go
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build windows
 // +build windows
 
 package fileutil
diff --git a/tsdb/fileutil/flock_solaris.go b/tsdb/fileutil/flock_solaris.go
index cfff8e42f8..f19c184a44 100644
--- a/tsdb/fileutil/flock_solaris.go
+++ b/tsdb/fileutil/flock_solaris.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build solaris
 // +build solaris
 
 package fileutil
diff --git a/tsdb/fileutil/flock_unix.go b/tsdb/fileutil/flock_unix.go
index f6f78d367d..c0aeb69486 100644
--- a/tsdb/fileutil/flock_unix.go
+++ b/tsdb/fileutil/flock_unix.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd
 // +build darwin dragonfly freebsd linux netbsd openbsd
 
 package fileutil
diff --git a/tsdb/fileutil/mmap_386.go b/tsdb/fileutil/mmap_386.go
index 66b9d36803..591d722d57 100644
--- a/tsdb/fileutil/mmap_386.go
+++ b/tsdb/fileutil/mmap_386.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build windows
 // +build windows
 
 package fileutil
diff --git a/tsdb/fileutil/mmap_amd64.go b/tsdb/fileutil/mmap_amd64.go
index 4b523bc67c..4c9534e93f 100644
--- a/tsdb/fileutil/mmap_amd64.go
+++ b/tsdb/fileutil/mmap_amd64.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build windows
 // +build windows
 
 package fileutil
diff --git a/tsdb/fileutil/mmap_unix.go b/tsdb/fileutil/mmap_unix.go
index 043f4d408c..9365c62f74 100644
--- a/tsdb/fileutil/mmap_unix.go
+++ b/tsdb/fileutil/mmap_unix.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !windows && !plan9
 // +build !windows,!plan9
 
 package fileutil
diff --git a/tsdb/fileutil/preallocate_other.go b/tsdb/fileutil/preallocate_other.go
index 162fbc5f78..2c46dd4907 100644
--- a/tsdb/fileutil/preallocate_other.go
+++ b/tsdb/fileutil/preallocate_other.go
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !linux && !darwin
 // +build !linux,!darwin
 
 package fileutil
diff --git a/tsdb/fileutil/sync.go b/tsdb/fileutil/sync.go
index 2e64a40880..5bd18b458c 100644
--- a/tsdb/fileutil/sync.go
+++ b/tsdb/fileutil/sync.go
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !linux && !darwin
 // +build !linux,!darwin
 
 package fileutil
diff --git a/tsdb/fileutil/sync_darwin.go b/tsdb/fileutil/sync_darwin.go
index 2af1b0f411..155b944595 100644
--- a/tsdb/fileutil/sync_darwin.go
+++ b/tsdb/fileutil/sync_darwin.go
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build darwin
 // +build darwin
 
 package fileutil
diff --git a/tsdb/fileutil/sync_linux.go b/tsdb/fileutil/sync_linux.go
index 8b4fc8268e..1c2091ea38 100644
--- a/tsdb/fileutil/sync_linux.go
+++ b/tsdb/fileutil/sync_linux.go
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build linux
 // +build linux
 
 package fileutil
diff --git a/tsdb/goversion/goversion.go b/tsdb/goversion/goversion.go
index 93ff6ef8b9..02da2639d6 100644
--- a/tsdb/goversion/goversion.go
+++ b/tsdb/goversion/goversion.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build go1.12
 // +build go1.12
 
 // Package goversion enforces the go version supported by the tsdb module.
diff --git a/tsdb/wal_test.go b/tsdb/wal_test.go
index 9667105e1e..fdcd6ce52d 100644
--- a/tsdb/wal_test.go
+++ b/tsdb/wal_test.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !windows
 // +build !windows
 
 package tsdb
diff --git a/web/ui/assets_generate.go b/web/ui/assets_generate.go
index 1f7870c2f9..884329bd02 100644
--- a/web/ui/assets_generate.go
+++ b/web/ui/assets_generate.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build ignore
 // +build ignore
 
 package main
diff --git a/web/ui/ui.go b/web/ui/ui.go
index 9ee4578017..6b569ca32d 100644
--- a/web/ui/ui.go
+++ b/web/ui/ui.go
@@ -11,6 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !builtinassets
 // +build !builtinassets
 
 package ui