diff --git a/models/unit.go b/models/unit.go
index a14edcec0..db15100c5 100644
--- a/models/unit.go
+++ b/models/unit.go
@@ -16,6 +16,7 @@ const (
 	UnitTypeWiki                                // 5 Wiki
 	UnitTypeExternalWiki                        // 6 ExternalWiki
 	UnitTypeExternalTracker                     // 7 ExternalTracker
+	UnitTypeIssueDependencies		    // 8 Issue Dependencies
 )
 
 var (
@@ -28,6 +29,7 @@ var (
 		UnitTypeWiki,
 		UnitTypeExternalWiki,
 		UnitTypeExternalTracker,
+		UnitTypeIssueDependencies,
 	}
 
 	// defaultRepoUnits contains the default unit types
diff --git a/modules/auth/repo_form.go b/modules/auth/repo_form.go
index a6454655f..a226f69a3 100644
--- a/modules/auth/repo_form.go
+++ b/modules/auth/repo_form.go
@@ -106,6 +106,7 @@ type RepoSettingForm struct {
 	EnablePulls                      bool
 	EnableTimetracker                bool
 	AllowOnlyContributorsToTrackTime bool
+	EnableIssueDependencies 		 bool
 }
 
 // Validate validates the fields
diff --git a/routers/repo/setting.go b/routers/repo/setting.go
index eb4136b07..27fb751f8 100644
--- a/routers/repo/setting.go
+++ b/routers/repo/setting.go
@@ -16,6 +16,7 @@ import (
 	"code.gitea.io/gitea/modules/context"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
+	"fmt"
 )
 
 const (
@@ -219,6 +220,15 @@ func SettingsPost(ctx *context.Context, form auth.RepoSettingForm) {
 			})
 		}
 
+		if form.EnableIssueDependencies{
+			units = append(units, models.RepoUnit{
+				RepoID: repo.ID,
+				Type:   models.UnitTypeIssueDependencies,
+				Index:  int(models.UnitTypeIssueDependencies),
+				Config: new(models.UnitConfig),
+			})
+		}
+
 		if err := models.UpdateRepositoryUnits(repo, units); err != nil {
 			ctx.Handle(500, "UpdateRepositoryUnits", err)
 			return
diff --git a/templates/repo/settings/options.tmpl b/templates/repo/settings/options.tmpl
index b2b7fc9c3..ec3b8f693 100644
--- a/templates/repo/settings/options.tmpl
+++ b/templates/repo/settings/options.tmpl
@@ -153,6 +153,12 @@
 							</div>
 						</div>
 					</div>
+					<div class="field">
+						<div class="ui checkbox">
+							<input name="enable_issue_dependencies" type="checkbox">
+							<label>Issues can have dependencies</label>
+						</div>
+					</div>
 					<div class="field">
 						<div class="ui radio checkbox">
 							<input class="hidden enable-system-radio" tabindex="0" name="enable_external_tracker" type="radio" value="true" data-context="#internal_issue_box" data-target="#external_issue_box" {{if .Repository.UnitEnabled $.UnitTypeExternalTracker}}checked{{end}}/>