diff --git a/routers/web/repo/setting/protected_branch.go b/routers/web/repo/setting/protected_branch.go
index 4374e95340a..a5a25e6c4e0 100644
--- a/routers/web/repo/setting/protected_branch.go
+++ b/routers/web/repo/setting/protected_branch.go
@@ -20,6 +20,7 @@ import (
 	"code.gitea.io/gitea/models/unit"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/glob"
+	"code.gitea.io/gitea/modules/json"
 	"code.gitea.io/gitea/modules/templates"
 	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/routers/web/repo"
@@ -312,10 +313,14 @@ func DeleteProtectedBranchRulePost(ctx *context.Context) {
 }
 
 func UpdateBranchProtectionPriories(ctx *context.Context) {
-	form := web.GetForm(ctx).(*forms.ProtectBranchPriorityForm)
-	repo := ctx.Repo.Repository
-
-	if err := git_model.UpdateProtectBranchPriorities(ctx, repo, form.IDs); err != nil {
+	var form struct {
+		IDs []int64 `json:"ids"`
+	}
+	if err := json.NewDecoder(ctx.Req.Body).Decode(&form); err != nil {
+		ctx.JSONError("invalid argument")
+		return
+	}
+	if err := git_model.UpdateProtectBranchPriorities(ctx, ctx.Repo.Repository, form.IDs); err != nil {
 		ctx.ServerError("UpdateProtectBranchPriorities", err)
 		return
 	}
diff --git a/routers/web/web.go b/routers/web/web.go
index c6dece7b569..ecd75250d24 100644
--- a/routers/web/web.go
+++ b/routers/web/web.go
@@ -1175,7 +1175,7 @@ func registerWebRoutes(m *web.Router, webAuth *AuthMiddleware) {
 			m.Combo("/edit").Get(repo_setting.SettingsProtectedBranch).
 				Post(web.Bind(forms.ProtectBranchForm{}), context.RepoMustNotBeArchived(), repo_setting.SettingsProtectedBranchPost)
 			m.Post("/{id}/delete", repo_setting.DeleteProtectedBranchRulePost)
-			m.Post("/priority", web.Bind(forms.ProtectBranchPriorityForm{}), context.RepoMustNotBeArchived(), repo_setting.UpdateBranchProtectionPriories)
+			m.Post("/priority", context.RepoMustNotBeArchived(), repo_setting.UpdateBranchProtectionPriories)
 		})
 
 		m.Group("/tags", func() {
diff --git a/services/forms/repo_form.go b/services/forms/repo_form.go
index 3135026e36c..d8e019f8609 100644
--- a/services/forms/repo_form.go
+++ b/services/forms/repo_form.go
@@ -202,10 +202,6 @@ func (f *ProtectBranchForm) Validate(req *http.Request, errs binding.Errors) bin
 	return middleware.Validate(errs, ctx.Data, f, ctx.Locale)
 }
 
-type ProtectBranchPriorityForm struct {
-	IDs []int64
-}
-
 // WebhookForm form for changing web hook
 type WebhookForm struct {
 	Name                     string `binding:"MaxSize(255)"`