diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f2763aa..6625684 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,3 +29,5 @@ jobs:
       - uses: coverallsapp/github-action@v2
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
+        env:
+          COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
diff --git a/lib/relation/equals.ts b/lib/relation/equals.ts
index b7528a8..eb54c56 100644
--- a/lib/relation/equals.ts
+++ b/lib/relation/equals.ts
@@ -20,11 +20,11 @@ const _uniqContentEquals = (iterA: Iterator<unknown>, iterB: Iterator<unknown>,
 };
 
 const __equals = (a: unknown, b: unknown, stackA: unknown[], stackB: unknown[]): boolean => {
+  if (a === null || b === null) return a === b;
   if (identical(a, b)) return true;
   const typeA = Object.prototype.toString.call(a).slice(8, -1);
   const typeB = Object.prototype.toString.call(b).slice(8, -1);
   if (typeA !== typeB) return false;
-  if (a === null || b === null) return false;
 
   switch (typeA) {
     case 'Boolean': case 'Number': case 'String': case 'Date':
diff --git a/package.json b/package.json
index f617ada..1b184c0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fpure",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "description": "Pure, curried, functional programming utilities for TypeScript.",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
diff --git a/spec/relation.test.cjs b/spec/relation.test.cjs
index b29b4f6..85c3fde 100644
--- a/spec/relation.test.cjs
+++ b/spec/relation.test.cjs
@@ -57,6 +57,10 @@ describe('equals', () => {
     assert.equal(equals(1, 1), true);
     assert.equal(equals(1, '1'), false);
     assert.equal(equals(NaN, NaN), true);
+    assert.equal(equals(true, false), false);
+    assert.equal(equals(false, true), false);
+    assert.equal(equals(null, null), true);
+    assert.equal(equals(null, undefined), false);
   });
 
   it('compares arrays deeply', () => {