diff --git a/package.json b/package.json
index b4e505c..eb05217 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   },
   "dependencies": {},
   "devDependencies": {
-    "ava": "0.13.0",
+    "ava": "0.14.0",
     "coveralls": "2.11.9",
     "eslint": "2.7.0",
     "eslint-config-pedant": "0.1.1",
diff --git a/test/add.js b/test/add.js
index ab7ee4c..84b5813 100644
--- a/test/add.js
+++ b/test/add.js
@@ -10,7 +10,7 @@ test('should add value', t => {
 
     set.add(1);
 
-    t.same(Array.from(set), [1]);
+    t.deepEqual(Array.from(set), [1]);
 });
 
 test('should not add existing value', t => {
@@ -19,7 +19,7 @@ test('should not add existing value', t => {
     set.add(1);
     set.add(1);
 
-    t.same(Array.from(set), [1]);
+    t.deepEqual(Array.from(set), [1]);
 });
 
 test('should support chains', t => {
@@ -29,5 +29,5 @@ test('should support chains', t => {
         .add(1)
         .add(2);
 
-    t.same(Array.from(set), [1, 2]);
+    t.deepEqual(Array.from(set), [1, 2]);
 });
diff --git a/test/constructor.js b/test/constructor.js
index a021236..707e4b3 100644
--- a/test/constructor.js
+++ b/test/constructor.js
@@ -8,19 +8,19 @@ const MySet = hashSet(x => x);
 test('should create empty set', t => {
     const set = new MySet();
 
-    t.same(Array.from(set), []);
+    t.deepEqual(Array.from(set), []);
 });
 
 test('should create set with array items', t => {
     const arr = [1, 2, 3];
     const set = new MySet(arr);
 
-    t.same(Array.from(set), arr);
+    t.deepEqual(Array.from(set), arr);
 });
 
 test('should create set with iterable items', t => {
     const iterable = (new Set([1, 2, 3])).values();
     const set = new MySet(iterable);
 
-    t.same(Array.from(set), Array.from([1, 2, 3]));
+    t.deepEqual(Array.from(set), Array.from([1, 2, 3]));
 });
diff --git a/test/delete.js b/test/delete.js
index 7426820..63ce355 100644
--- a/test/delete.js
+++ b/test/delete.js
@@ -13,7 +13,7 @@ test('should delete existing value', t => {
 
     set.delete(1);
 
-    t.same(Array.from(set), [2]);
+    t.deepEqual(Array.from(set), [2]);
 });
 
 test('should not throw if deleted value is not exist', t => {
@@ -21,5 +21,5 @@ test('should not throw if deleted value is not exist', t => {
 
     set.delete(1);
 
-    t.same(Array.from(set), []);
+    t.deepEqual(Array.from(set), []);
 });
diff --git a/test/hash-function.js b/test/hash-function.js
index d1adb25..493c982 100644
--- a/test/hash-function.js
+++ b/test/hash-function.js
@@ -18,7 +18,7 @@ test('should add value but not hash', t => {
 
     set.add('kitty');
 
-    t.same(Array.from(set), ['kitty']);
+    t.deepEqual(Array.from(set), ['kitty']);
 });
 
 test('should add values with different hash', t => {
@@ -27,7 +27,7 @@ test('should add values with different hash', t => {
     set.add('kitty');
     set.add('puppy');
 
-    t.same(Array.from(set), ['kitty', 'puppy']);
+    t.deepEqual(Array.from(set), ['kitty', 'puppy']);
 });
 
 test('should not add value if other value with same hash', t => {
@@ -36,5 +36,5 @@ test('should not add value if other value with same hash', t => {
     set.add('cat');
     set.add('kitty');
 
-    t.same(Array.from(set), ['cat']);
+    t.deepEqual(Array.from(set), ['cat']);
 });
diff --git a/test/iterators.js b/test/iterators.js
index 392c74a..8ab7947 100644
--- a/test/iterators.js
+++ b/test/iterators.js
@@ -13,7 +13,7 @@ test('should be iterable', t => {
         arr.push(v);
     }
 
-    t.same(arr, [1, 2]);
+    t.deepEqual(arr, [1, 2]);
 });
 
 test('forEach()', t => {
@@ -22,23 +22,23 @@ test('forEach()', t => {
 
     set.forEach(v => arr.push(v));
 
-    t.same(arr, [1, 2]);
+    t.deepEqual(arr, [1, 2]);
 });
 
 test('entries()', t => {
     const set = new MySet([1, 2]);
 
-    t.same(Array.from(set.entries()), [1, 2]);
+    t.deepEqual(Array.from(set.entries()), [1, 2]);
 });
 
 test('keys()', t => {
     const set = new MySet([1, 2]);
 
-    t.same(Array.from(set.keys()), [1, 2]);
+    t.deepEqual(Array.from(set.keys()), [1, 2]);
 });
 
 test('values()', t => {
     const set = new MySet([1, 2]);
 
-    t.same(Array.from(set.values()), [1, 2]);
+    t.deepEqual(Array.from(set.values()), [1, 2]);
 });
diff --git a/test/mimic.js b/test/mimic.js
index f294d4e..e2d3130 100644
--- a/test/mimic.js
+++ b/test/mimic.js
@@ -20,5 +20,5 @@ test('should return original Set with `valueOf()` method', t => {
     const originSet = (new Set([1, 2, 3]))._c; // AVA uses babel-runtime
     const mySet = new MySet([1, 2, 3]);
 
-    t.same(mySet.valueOf(), originSet);
+    t.deepEqual(mySet.valueOf(), originSet);
 });