diff --git a/frontend/src/stores/projects.test.ts b/frontend/src/stores/projects.test.ts
index 26c2b92c2..a3ef547c2 100644
--- a/frontend/src/stores/projects.test.ts
+++ b/frontend/src/stores/projects.test.ts
@@ -30,6 +30,22 @@ vi.mock('@/stores/base', () => ({
 	}),
 }))
 
+const projectServiceMock = {
+	update: vi.fn(),
+	getAll: vi.fn(),
+	totalPages: 1,
+}
+
+vi.mock('@/services/project', () => ({
+	default: class {
+		update = (project: IProject) => projectServiceMock.update(project)
+		getAll = (...args: unknown[]) => projectServiceMock.getAll(...args)
+		get totalPages() {
+			return projectServiceMock.totalPages
+		}
+	},
+}))
+
 function createMockProject(overrides: Partial<IProject>): IProject {
 	return {
 		id: 1,
@@ -211,4 +227,41 @@ describe('project store', () => {
 			expect(store.getEffectiveParentProjectId(orphanedProject, 5)).toBe(5)
 		})
 	})
+
+	describe('updateProject', () => {
+		beforeEach(() => {
+			projectServiceMock.update.mockReset()
+			projectServiceMock.getAll.mockReset()
+			projectServiceMock.totalPages = 1
+		})
+
+		it('should not reload all projects when the api kept the position', async () => {
+			const store = useProjectStore()
+			const project = createMockProject({id: 1, position: 100})
+			store.setProject(project)
+			projectServiceMock.update.mockResolvedValue(createMockProject({id: 1, position: 100}))
+
+			await store.updateProject({...project, title: 'Renamed'})
+
+			expect(projectServiceMock.getAll).not.toHaveBeenCalled()
+		})
+
+		it('should reload all projects when the api recalculated the position', async () => {
+			const store = useProjectStore()
+			store.setProject(createMockProject({id: 1, position: 0.0001}))
+			store.setProject(createMockProject({id: 2, position: 100}))
+			projectServiceMock.update.mockResolvedValue(createMockProject({id: 1, position: 2147483648}))
+			projectServiceMock.getAll.mockResolvedValue([
+				createMockProject({id: 1, position: 2147483648}),
+				createMockProject({id: 2, position: 4294967296}),
+			])
+
+			await store.updateProject(createMockProject({id: 1, position: 0.0001}))
+
+			expect(projectServiceMock.getAll).toHaveBeenCalled()
+			// Project 2 was never updated - only the reload can fix its stale position.
+			expect(store.projectsArray.map(p => p.id)).toEqual([1, 2])
+			expect(store.projects[2].position).toBe(4294967296)
+		})
+	})
 })
diff --git a/frontend/src/stores/projects.ts b/frontend/src/stores/projects.ts
index 18a3dfad2..037fc9f79 100644
--- a/frontend/src/stores/projects.ts
+++ b/frontend/src/stores/projects.ts
@@ -224,6 +224,12 @@ export const useProjectStore = defineStore('project', () => {
 			const updatedProject = await projectService.update(project)
 			setProject(project)
 
+			// The api renumbers all sibling positions once they drift too close together but
+			// only returns the updated project, so the rest would keep stale positions.
+			if (updatedProject.position !== project.position) {
+				await loadAllProjects()
+			}
+
 			// the returned project from projectService.update is the same!
 			// in order to not create a manipulation in pinia store we have to create a new copy
 			return updatedProject