diff --git a/web_src/js/components/RepoContributors.test.js b/web_src/js/components/RepoContributors.test.js
new file mode 100644
index 0000000000..d97a862d2d
--- /dev/null
+++ b/web_src/js/components/RepoContributors.test.js
@@ -0,0 +1,76 @@
+import {flushPromises, mount} from '@vue/test-utils';
+import RepoContributors from './RepoContributors.vue';
+
+test('has commits from before 2001', async () => {
+  vi.spyOn(global, 'fetch').mockResolvedValue({
+    json: vi.fn().mockResolvedValue({
+      'daniel@haxx.se': {
+        name: 'Daniel Stenberg',
+        total_commits: 13,
+        weeks: {
+          1754179200000: {
+            week: 1754179200000,
+            additions: 4330,
+            deletions: 47,
+            commits: 10,
+          },
+          946166400000: {
+            week: 946166400000,
+            additions: 37273,
+            deletions: 0,
+            commits: 1,
+          },
+        },
+      },
+      total: {
+        name: 'Total',
+        total_commits: 11,
+        weeks: {
+          1754179200000: {
+            week: 1754179200000,
+            additions: 4330,
+            deletions: 47,
+            commits: 10,
+          },
+          946166400000: {
+            week: 946166400000,
+            additions: 37273,
+            deletions: 0,
+            commits: 1,
+          },
+        },
+      },
+    }),
+    ok: true,
+  });
+
+  const repoContributorsGraph = mount(RepoContributors, {
+    global: {
+      stubs: {
+        'relative-time': {
+          template: '<span>relative time</span>',
+        },
+      },
+    },
+    props: {
+      repoLink: '',
+      repoDefaultBranchName: '',
+      locale: {
+        filterLabel: '',
+        contributionType: {
+          commits: '',
+          additions: '',
+          deletions: '',
+        },
+
+        loadingTitle: '',
+        loadingTitleFailed: '',
+        loadingInfo: '',
+      },
+    },
+  });
+  await flushPromises();
+
+  expect(repoContributorsGraph.componentVM.xAxisStart).toBe(946166400000);
+  expect(repoContributorsGraph.componentVM.contributorsStats['daniel@haxx.se'].weeks[0].week).toBe(946166400000);
+});
diff --git a/web_src/js/components/RepoContributors.vue b/web_src/js/components/RepoContributors.vue
index 5e03019ef1..4b15c3714b 100644
--- a/web_src/js/components/RepoContributors.vue
+++ b/web_src/js/components/RepoContributors.vue
@@ -125,7 +125,7 @@ export default {
           const data = await response.json();
           const {total, ...rest} = data;
           // below line might be deleted if we are sure go produces map always sorted by keys
-          total.weeks = Object.fromEntries(Object.entries(total.weeks).sort());
+          total.weeks = Object.fromEntries(Object.entries(total.weeks).map((x) => [parseInt(x[0]), x[1]]).sort((a, b) => a[0] - b[0]));
 
           const weekValues = Object.values(total.weeks);
           this.xAxisStart = weekValues[0].week;
diff --git a/web_src/js/vitest.setup.js b/web_src/js/vitest.setup.js
index 5366958fb5..a99b852097 100644
--- a/web_src/js/vitest.setup.js
+++ b/web_src/js/vitest.setup.js
@@ -1,3 +1,7 @@
+import $ from 'jquery';
+
+$.fn.dropdown = () => undefined;
+
 window.__webpack_public_path__ = '';
 
 window.config = {