diff --git a/package-lock.json b/package-lock.json
index d3bd21c..1173c91 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "pactum",
-  "version": "3.1.2",
+  "version": "3.1.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -1655,9 +1655,9 @@
       }
     },
     "pactum-matchers": {
-      "version": "1.0.6",
-      "resolved": "https://registry.npmjs.org/pactum-matchers/-/pactum-matchers-1.0.6.tgz",
-      "integrity": "sha512-vUXnIAEmQdg3tKXzcj2OFhB1A492u+c89ps6JY6aDH0xH29fbyDYmnHl4xtp3peQosq8AOqC9D6eTXMAhcE5xw=="
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/pactum-matchers/-/pactum-matchers-1.1.0.tgz",
+      "integrity": "sha512-3yeLEqLk8Kk5NqFLCuuGZcbeJUZNVjSOm46+/Y27Wo/Xe4ymySJ2D7R/aE/q+8uBwtanqw1x5RRP+XR8Mcm1Gw=="
     },
     "parse-graphql": {
       "version": "1.0.0",
diff --git a/package.json b/package.json
index 9b7a34b..00bc0e2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pactum",
-  "version": "3.1.2",
+  "version": "3.1.3",
   "description": "REST API Testing Tool for all levels in a Test Pyramid",
   "main": "./src/index.js",
   "types": "./src/index.d.ts",
@@ -67,7 +67,7 @@
     "klona": "^2.0.4",
     "lightcookie": "^1.0.25",
     "openapi-fuzzer-core": "^1.0.6",
-    "pactum-matchers": "^1.0.6",
+    "pactum-matchers": "^1.1.0",
     "parse-graphql": "^1.0.0",
     "phin": "^3.6.0",
     "polka": "^0.5.2"
diff --git a/src/models/Spec.js b/src/models/Spec.js
index 1e154e1..b834c7c 100644
--- a/src/models/Spec.js
+++ b/src/models/Spec.js
@@ -211,12 +211,21 @@ class Spec {
     if (!this._request.headers) {
       this._request.headers = {};
     }
-    const cookieObject = utils.createCookieObject(key, value);
+    let cookie;
+    if (typeof key === 'object') {
+      cookie = lc.serialize(key);
+    } else {
+      if (value) {
+        cookie = `${key}=${value}`;
+      } else {
+        cookie = key;
+      }
+    }
     const headers = this._request.headers;
     if (headers['cookie'] !== undefined) {
-      headers['cookie'] = headers['cookie'] + ';' + lc.serialize(cookieObject);
+      headers['cookie'] = headers['cookie'] + ';' + cookie;
     } else {
-      headers['cookie'] = lc.serialize(cookieObject);
+      headers['cookie'] = cookie;
     }
     return this;
   }
diff --git a/src/models/expect.js b/src/models/expect.js
index a5af6f7..9ee757d 100644
--- a/src/models/expect.js
+++ b/src/models/expect.js
@@ -342,7 +342,12 @@ class Expect {
       for (let i = 0; i < this.jsonSnapshot.length; i++) {
         const data = this.jsonSnapshot[i];
         if (data) {
-          Object.assign(rules, jmv.getMatchingRules(data, '$.body'));
+          const current_rules = jmv.getMatchingRules(data, '$.body');
+          const errors = jmv.validate(actual,  jmv.getRawValue(data), current_rules, '$.body');
+          if (errors) {
+            this.fail(errors.replace('$.body', '$'));
+          }
+          Object.assign(rules, current_rules);
         }
       }
       if (Object.keys(rules).length > 0) {
diff --git a/test/component/expects.spec.js b/test/component/expects.spec.js
index 2a66680..f37be29 100644
--- a/test/component/expects.spec.js
+++ b/test/component/expects.spec.js
@@ -1007,6 +1007,28 @@ describe('Expects', () => {
     expect(err2).not.undefined;
   });
 
+  it('json snapshot - with invalid matchers', async () => {
+    let e;
+    try {
+      await pactum.spec()
+      .useInteraction('get people')
+      .name('json snapshot - with invalid matchers')
+      .get('http://localhost:9393/api/people')
+      .expectStatus(200)
+      .useLogLevel('ERROR')
+      .expectJsonSnapshot({
+        id: like('id')
+      })
+      .expectJsonSnapshot({
+        createdAt: like('2020-02-02')
+      });
+    } catch (error) {
+      e = error;
+    }
+    expect(e).not.undefined;
+    fs.unlinkSync(`.pactum/snapshots/json snapshot - with invalid matchers.json`);
+  });
+
   it('error - empty', async () => {
     await pactum.spec()
       .get('http://localhost:9392')