diff --git a/Dockerfile b/Dockerfile
index 4233cb8..c10692c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM golang:1.21
+FROM golang:1.21.4
 WORKDIR /app
 COPY go.mod go.sum ./
 RUN go mod download
diff --git a/go.mod b/go.mod
index e0222e2..a243ded 100644
--- a/go.mod
+++ b/go.mod
@@ -2,12 +2,12 @@ module github.com/hm-edu/dnscontrol-extended
 
 go 1.21
 
-toolchain go1.21.1
+toolchain go1.21.4
 
 require (
 	github.com/StackExchange/dnscontrol/v4 v4.8.0
 	github.com/spf13/cobra v1.8.0
-	github.com/xanzy/go-gitlab v0.94.0
+	github.com/xanzy/go-gitlab v0.95.2
 	go.uber.org/zap v1.26.0
 	golang.org/x/time v0.5.0
 )
diff --git a/go.sum b/go.sum
index ef71e24..74929b5 100644
--- a/go.sum
+++ b/go.sum
@@ -64,6 +64,8 @@ github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcU
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/xanzy/go-gitlab v0.94.0 h1:GmBl2T5zqUHqyjkxFSvsT7CbelGdAH/dmBqUBqS+4BE=
 github.com/xanzy/go-gitlab v0.94.0/go.mod h1:ETg8tcj4OhrB84UEgeE8dSuV/0h4BBL1uOV/qK0vlyI=
+github.com/xanzy/go-gitlab v0.95.2 h1:4p0IirHqEp5f0baK/aQqr4TR57IsD+8e4fuyAA1yi88=
+github.com/xanzy/go-gitlab v0.95.2/go.mod h1:ETg8tcj4OhrB84UEgeE8dSuV/0h4BBL1uOV/qK0vlyI=
 github.com/xddxdd/ottoext v0.0.0-20221109171055-210517fa4419 h1:PT5KYEimicg1GRkBtBxCLcHWvMcBRGljOLwG/y4+T5c=
 github.com/xddxdd/ottoext v0.0.0-20221109171055-210517fa4419/go.mod h1:BxZUa1xZ189Ww28wRT0LjHcmHgQmPh27hqfHIwET0ok=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
diff --git a/helper/gitlab.go b/helper/gitlab.go
index 3f87ced..ab10ee6 100644
--- a/helper/gitlab.go
+++ b/helper/gitlab.go
@@ -89,9 +89,9 @@ func GenerateGitlabIssue(zones []SubnetResponse, pat, api, projectID, zone strin
 		}
 
 		issue, _, err = client.Issues.CreateIssue(project.ID, &gitlab.CreateIssueOptions{
-			Title:       gitlab.String("IP usage in " + zone),
-			Description: gitlab.String(""),
-			Labels:      &gitlab.Labels{strings.Join(matchingLabels, ",")},
+			Title:       gitlab.Ptr("IP usage in " + zone),
+			Description: gitlab.Ptr(""),
+			Labels:      &gitlab.LabelOptions{strings.Join(matchingLabels, ",")},
 		})
 		if err != nil {
 			panic(err)
@@ -104,7 +104,7 @@ func GenerateGitlabIssue(zones []SubnetResponse, pat, api, projectID, zone strin
 				_, err := client.Issues.DeleteIssue(project.ID, issue.IID)
 				if err != nil {
 					logger.Sugar().Warnf("Deleting issue %s failed.", issue.Title)
-					_, _, err := client.Issues.UpdateIssue(project.ID, issue.IID, &gitlab.UpdateIssueOptions{StateEvent: gitlab.String("close")})
+					_, _, err := client.Issues.UpdateIssue(project.ID, issue.IID, &gitlab.UpdateIssueOptions{StateEvent: gitlab.Ptr("close")})
 					if err != nil {
 						logger.Sugar().Errorf("Closing issue %s failed.", issue.Title)
 					}
@@ -151,13 +151,13 @@ func GenerateGitlabIssue(zones []SubnetResponse, pat, api, projectID, zone strin
 		}
 	}
 	update := &gitlab.UpdateIssueOptions{
-		Title:       gitlab.String("IP usage in " + zone),
-		Description: gitlab.String(description),
-		Labels:      &gitlab.Labels{strings.Join(matchingLabels, ",")},
+		Title:       gitlab.Ptr("IP usage in " + zone),
+		Description: gitlab.Ptr(description),
+		Labels:      &gitlab.LabelOptions{strings.Join(matchingLabels, ",")},
 	}
 	if issue.State == "closed" {
 		logger.Sugar().Warnf("Reopening issue for %s", zone)
-		update.StateEvent = gitlab.String("reopen")
+		update.StateEvent = gitlab.Ptr("reopen")
 	}
 	_, _, err = client.Issues.UpdateIssue(project.ID, issue.IID, update)
 	if err != nil {
@@ -187,7 +187,7 @@ func GenerateGitlabIssue(zones []SubnetResponse, pat, api, projectID, zone strin
 			for _, item := range zones[i:] {
 				if len([]byte(description)) > (1024 * 512) {
 					description += "\n\nPlease check comments"
-					_, _, err := client.Notes.CreateIssueNote(project.ID, issue.IID, &gitlab.CreateIssueNoteOptions{Body: gitlab.String(description)})
+					_, _, err := client.Notes.CreateIssueNote(project.ID, issue.IID, &gitlab.CreateIssueNoteOptions{Body: gitlab.Ptr(description)})
 					if err != nil {
 						logger.Sugar().Fatal(zap.Error(err))
 					}
@@ -199,7 +199,7 @@ func GenerateGitlabIssue(zones []SubnetResponse, pat, api, projectID, zone strin
 			}
 			if i == len(zones) {
 				if !inserted {
-					_, _, err := client.Notes.CreateIssueNote(project.ID, issue.IID, &gitlab.CreateIssueNoteOptions{Body: gitlab.String(description)})
+					_, _, err := client.Notes.CreateIssueNote(project.ID, issue.IID, &gitlab.CreateIssueNoteOptions{Body: gitlab.Ptr(description)})
 					if err != nil {
 						logger.Sugar().Fatal(zap.Error(err))
 					}