diff --git a/src/utils/__tests__/version.test.ts b/src/utils/__tests__/version.test.ts
index 4a6b82f6..7da21319 100644
--- a/src/utils/__tests__/version.test.ts
+++ b/src/utils/__tests__/version.test.ts
@@ -185,8 +185,10 @@ describe('versionGreaterOrEqualThan', () => {
   test('can compare pre parts', () => {
     const v1 = parseVersion('1.2.3-1');
     const v2 = parseVersion('1.2.3-2');
-    expect(versionGreaterOrEqualThan(v1, v2)).toBe(false);
-    expect(versionGreaterOrEqualThan(v2, v1)).toBe(true);
+    expect(v1).not.toBeNull();
+    expect(v2).not.toBeNull();
+    expect(versionGreaterOrEqualThan(v1 as SemVer, v2 as SemVer)).toBe(false);
+    expect(versionGreaterOrEqualThan(v2 as SemVer, v1 as SemVer)).toBe(true);
   });
 
   test('throws an exception if there are build parts', () => {