diff --git a/src/lib/project/compare-branches.ts b/src/lib/project/compare-branches.ts
new file mode 100644
index 00000000..d176007a
--- /dev/null
+++ b/src/lib/project/compare-branches.ts
@@ -0,0 +1,29 @@
+import debug = require("debug");
+import { requestsManager } from "snyk-request-manager";
+import { updateProject } from "../api/project";
+
+export async function compareAndUpdateBranches(
+    requestManager: requestsManager,
+    snykDefaultBranch: string,
+    githubBranch: string,
+    projectId: string,
+    orgId: string,
+  ): Promise<{projectUpdated:boolean}> {
+
+    let projectUpdated = false
+    try {
+      
+      if (snykDefaultBranch != githubBranch) {
+        debug(`default branch update needed for project ${projectId}\n`);
+        
+          await updateProject(requestManager, orgId, projectId, {branch: githubBranch});
+          projectUpdated = true
+      }
+
+    return { projectUpdated: projectUpdated } 
+  } catch (e) {
+    throw new Error(
+      `Failed to update project ${projectId}. ERROR: ${e.message}`,
+    );
+  }
+}
diff --git a/test/lib/projects.test.ts b/test/lib/projects.test.ts
index 8c078b61..34d2e496 100644
--- a/test/lib/projects.test.ts
+++ b/test/lib/projects.test.ts
@@ -1,5 +1,6 @@
 import { requestsManager } from 'snyk-request-manager';
 import { updateProject } from '../../src/lib';
+import * as compareProject from '../../src/lib/project/compare-branches';
 
 jest.unmock('snyk-request-manager');
 jest.requireActual('snyk-request-manager');
@@ -56,3 +57,60 @@ describe('UpdateProject', () => {
 
 })
 
+describe('compareAndUpdateBranches', () => {
+  const requestManager = new requestsManager({
+    userAgentPrefix: 'snyk-api-import:tests',
+  });
+  afterAll(async () => {
+    jest.resetAllMocks()
+  }, 1000);
+
+  it('Update project branch', async () => {
+
+      jest.spyOn(requestManager, 'request').mockResolvedValue({ data: {
+          name: "test",
+          id: "af137b96-6966-46c1-826b-2e79ac49bbd9",
+          created: "2018-10-29T09:50:54.014Z",
+          origin: "github",
+          type: "maven",
+          readOnly: false,
+          testFrequency: "daily",
+          totalDependencies: 42,
+          issueCountsBySeverity: {},
+          imageId: "sha256:caf27325b298a6730837023a8a342699c8b7b388b8d",
+          imageTag: "latest",
+          imageBaseImage: "alpine:3",
+          imagePlatform: "linux/arm64",
+          imageCluster: "Production",
+          hostname: null,
+          remoteRepoUrl: "https://github.com/snyk/test.git",
+          lastTestedDate: "2019-02-05T08:54:07.704Z",
+          browseUrl: "https://app.snyk.io/org/4a18d42f-0706-4ad0-b127-24078731fbed/project/af137b96-6966-46c1-826b-2e79ac49bbd9",
+          importingUser: {},
+          isMonitored: false,
+          branch: "newDefaultBranch",
+          targetReference: null,
+          tags: [],
+          attributes: {},
+          remediation: {}
+        }, status: 200 })
+
+      const res = await compareProject.compareAndUpdateBranches(requestManager, "main", "newDefaultBranch","af137b96-6966-46c1-826b-2e79ac49bbxx", "af137b96-6966-46c1-826b-2e79ac49bbd9",);
+      expect(res.projectUpdated).toBeTruthy()
+      
+  }, 5000);
+
+  it('Return ProjectNeededUpdate false if branches are the same', async () => {
+
+    const res = await compareProject.compareAndUpdateBranches(requestManager, "main", "main","af137b96-6966-46c1-826b-2e79ac49bbxx", "af137b96-6966-46c1-826b-2e79ac49bbd9");
+    expect(res.projectUpdated).toBeFalsy()
+
+  }, 5000);
+
+  it('throw if the api requests fails', async () => {
+
+    jest.spyOn(requestManager, 'request').mockResolvedValue({statusCode : 500, data: {}})
+    expect(async () => {await compareProject.compareAndUpdateBranches(requestManager, "main", "newBranch","af137b96-6966-46c1-826b-2e79ac49bbxx", "af137b96-6966-46c1-826b-2e79ac49bbd9")}).rejects.toThrowError('Expected a 200 response, instead received: {"data":{},"status":500}')
+  }, 5000);
+
+})