diff --git a/.github/workflows/clickhouse.yml b/.github/workflows/clickhouse.yml
index 2efae3d..29b326e 100644
--- a/.github/workflows/clickhouse.yml
+++ b/.github/workflows/clickhouse.yml
@@ -16,7 +16,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.18
+          go-version: 1.24
 
       - name: ClickHouse in GitHub Actions
         uses: EpicStep/clickhouse-github-action@v1.0.0
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 9dab670..1cd6448 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -16,7 +16,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.18
+          go-version: 1.24
 
       - name: Build
         run: go build -v ./...
diff --git a/api/models/graph.go b/api/models/graph.go
index fd034fb..188ae5d 100644
--- a/api/models/graph.go
+++ b/api/models/graph.go
@@ -14,3 +14,4 @@ func (g Graph) GetTree(current string) Graph {
 	}
 	return graph
 }
+
diff --git a/dictionary_column.go b/dictionary_column.go
index 691745c..8769050 100644
--- a/dictionary_column.go
+++ b/dictionary_column.go
@@ -111,7 +111,7 @@ func isSameColumnTables(t1, t2 []string) error {
 	sort.Strings(t1)
 	sort.Strings(t2)
 	// TODO linq
-	for i := 0; i < len(t1); i++ {
+	for i := range len(t1) {
 		if t1[i] != t2[i] {
 			return fmt.Errorf("table is not same t1=%v, t2=%v", t1, t2)
 		}
diff --git a/dictionary_splitter.go b/dictionary_splitter.go
index fe14fdf..e0e0af0 100644
--- a/dictionary_splitter.go
+++ b/dictionary_splitter.go
@@ -290,7 +290,7 @@ func (n *NormalClauseSplitter) buildDimensionJoin() []*types.Join {
 		}
 		ds1, dl1, ds2, dl2 := v.Get1().DataSource, v.Get1().Dimension, v.Get2().DataSource, v.Get2().Dimension
 		var on []*types.JoinOn
-		for i := 0; i < len(dl1); i++ {
+		for i := range len(dl1) {
 			k1 := fmt.Sprintf("%v.%v", ds1, dl1[i])
 			k2 := fmt.Sprintf("%v.%v", ds2, dl2[i])
 			d1, _ := dGraph.GetDimension(k1)