diff --git a/.github/workflows/go-cross.yml b/.github/workflows/go-cross.yml
index fc43cfece..0528aa889 100644
--- a/.github/workflows/go-cross.yml
+++ b/.github/workflows/go-cross.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        go-version: [1.17.x]
+        go-version: [1.17.x, 1.18.x]
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@629c2de402a417ea7690ca6ce3f33229e27606a5 # v2
diff --git a/.github/workflows/go-lint.yml b/.github/workflows/go-lint.yml
index 4c9da0ce0..22629a5b2 100644
--- a/.github/workflows/go-lint.yml
+++ b/.github/workflows/go-lint.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        go-version: [1.17.x]
+        go-version: [1.17.x, 1.18.x]
         os: [ubuntu-latest, windows-latest]
     steps:
       - uses: actions/checkout@v2
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 3aa0158bc..65fc52493 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        go-version: [1.17.x]
+        go-version: [1.17.x, 1.18.x]
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v2
diff --git a/Makefile b/Makefile
index ad7171699..ad3c8b493 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ help: ## print this help
 
 getdeps: ## fetch necessary dependencies
 	@mkdir -p ${GOPATH}/bin
-	@echo "Installing golangci-lint" && curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOPATH)/bin v1.43.0
+	@echo "Installing golangci-lint" && curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOPATH)/bin v1.45.2
 	@echo "Installing msgp" && go install -v github.com/tinylib/msgp@v1.1.7-0.20211026165309-e818a1881b0e
 	@echo "Installing stringer" && go install -v golang.org/x/tools/cmd/stringer@latest
 
diff --git a/cmd/bucket-lifecycle.go b/cmd/bucket-lifecycle.go
index 580c948c7..4a8ec93cd 100644
--- a/cmd/bucket-lifecycle.go
+++ b/cmd/bucket-lifecycle.go
@@ -247,11 +247,11 @@ func (t *transitionState) addLastDayStats(tier string, ts tierStats) {
 	t.lastDayStats[tier].addStats(ts)
 }
 
-func (t *transitionState) getDailyAllTierStats() dailyAllTierStats {
+func (t *transitionState) getDailyAllTierStats() DailyAllTierStats {
 	t.lastDayMu.RLock()
 	defer t.lastDayMu.RUnlock()
 
-	res := make(dailyAllTierStats, len(t.lastDayStats))
+	res := make(DailyAllTierStats, len(t.lastDayStats))
 	for tier, st := range t.lastDayStats {
 		res[tier] = st.clone()
 	}
diff --git a/cmd/notification.go b/cmd/notification.go
index 13a2e9618..5f1ba6e51 100644
--- a/cmd/notification.go
+++ b/cmd/notification.go
@@ -1719,9 +1719,9 @@ func (sys *NotificationSys) ReloadSiteReplicationConfig(ctx context.Context) []e
 }
 
 // GetLastDayTierStats fetches per-tier stats of the last 24hrs from all peers
-func (sys *NotificationSys) GetLastDayTierStats(ctx context.Context) dailyAllTierStats {
+func (sys *NotificationSys) GetLastDayTierStats(ctx context.Context) DailyAllTierStats {
 	errs := make([]error, len(sys.allPeerClients))
-	lastDayStats := make([]dailyAllTierStats, len(sys.allPeerClients))
+	lastDayStats := make([]DailyAllTierStats, len(sys.allPeerClients))
 	var wg sync.WaitGroup
 	for index := range sys.peerClients {
 		if sys.peerClients[index] == nil {
diff --git a/cmd/peer-rest-client.go b/cmd/peer-rest-client.go
index 89b395b9c..75d77b0b7 100644
--- a/cmd/peer-rest-client.go
+++ b/cmd/peer-rest-client.go
@@ -1106,7 +1106,7 @@ func (client *peerRESTClient) ReloadSiteReplicationConfig(ctx context.Context) e
 	return nil
 }
 
-func (client *peerRESTClient) GetLastDayTierStats(ctx context.Context) (dailyAllTierStats, error) {
+func (client *peerRESTClient) GetLastDayTierStats(ctx context.Context) (DailyAllTierStats, error) {
 	var result map[string]lastDayTierStats
 	respBody, err := client.callWithContext(context.Background(), peerRESTMethodGetLastDayTierStats, nil, nil, -1)
 	if err != nil {
@@ -1116,9 +1116,9 @@ func (client *peerRESTClient) GetLastDayTierStats(ctx context.Context) (dailyAll
 
 	err = gob.NewDecoder(respBody).Decode(&result)
 	if err != nil {
-		return dailyAllTierStats{}, err
+		return DailyAllTierStats{}, err
 	}
-	return dailyAllTierStats(result), nil
+	return DailyAllTierStats(result), nil
 }
 
 // DevNull - Used by netperf to pump data to peer
diff --git a/cmd/tier-last-day-stats.go b/cmd/tier-last-day-stats.go
index 186d27dc4..cc8b1cbb4 100644
--- a/cmd/tier-last-day-stats.go
+++ b/cmd/tier-last-day-stats.go
@@ -84,16 +84,16 @@ func (l lastDayTierStats) merge(m lastDayTierStats) (merged lastDayTierStats) {
 	return merged
 }
 
-// dailyAllTierStats is used to aggregate last day tier stats across MinIO servers
-type dailyAllTierStats map[string]lastDayTierStats
+// DailyAllTierStats is used to aggregate last day tier stats across MinIO servers
+type DailyAllTierStats map[string]lastDayTierStats
 
-func (l dailyAllTierStats) merge(m dailyAllTierStats) {
+func (l DailyAllTierStats) merge(m DailyAllTierStats) {
 	for tier, st := range m {
 		l[tier] = l[tier].merge(st)
 	}
 }
 
-func (l dailyAllTierStats) addToTierInfo(tierInfos []madmin.TierInfo) []madmin.TierInfo {
+func (l DailyAllTierStats) addToTierInfo(tierInfos []madmin.TierInfo) []madmin.TierInfo {
 	for i := range tierInfos {
 		var lst lastDayTierStats
 		var ok bool