diff --git a/package-lock.json b/package-lock.json
index 3be7539..4edbfc9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "schedulator",
-  "version": "2.0.14",
+  "version": "2.0.15",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "schedulator",
-      "version": "2.0.14",
+      "version": "2.0.15",
       "license": "MIT",
       "dependencies": {
         "ajv": "^6.10.0"
@@ -1460,15 +1460,16 @@
       "dev": true
     },
     "node_modules/chai": {
-      "version": "4.3.4",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-4.3.4.tgz",
-      "integrity": "sha512-yS5H68VYOCtN1cjfwumDSuzn/9c+yza4f3reKXlE5rUg7SFcCEy90gJvydNgOYtblyf4Zi6jIWRnXOgErta0KA==",
+      "version": "4.3.7",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.3.7.tgz",
+      "integrity": "sha512-HLnAzZ2iupm25PlN0xFreAlBA5zaBSv3og0DdeGA4Ar6h6rJ3A0rolRUKJhSF2V10GZKDgWF/VmAEsNWjCRB+A==",
       "dev": true,
       "dependencies": {
         "assertion-error": "^1.1.0",
         "check-error": "^1.0.2",
-        "deep-eql": "^3.0.1",
+        "deep-eql": "^4.1.2",
         "get-func-name": "^2.0.0",
+        "loupe": "^2.3.1",
         "pathval": "^1.1.1",
         "type-detect": "^4.0.5"
       },
@@ -2015,15 +2016,15 @@
       }
     },
     "node_modules/deep-eql": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-3.0.1.tgz",
-      "integrity": "sha512-+QeIQyN5ZuO+3Uk5DYh6/1eKO0m0YmJFGNmFHGACpf1ClL1nmlV/p4gNgbl2pJGxgXb4faqo6UE+M5ACEMyVcw==",
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-4.1.2.tgz",
+      "integrity": "sha512-gT18+YW4CcW/DBNTwAmqTtkJh7f9qqScu2qFVlx7kCoeY9tlBu9cUcr7+I+Z/noG8INehS3xQgLpTtd/QUTn4w==",
       "dev": true,
       "dependencies": {
         "type-detect": "^4.0.0"
       },
       "engines": {
-        "node": ">=0.12"
+        "node": ">=6"
       }
     },
     "node_modules/default-compare": {
@@ -4745,6 +4746,15 @@
         "node": ">=8"
       }
     },
+    "node_modules/loupe": {
+      "version": "2.3.6",
+      "resolved": "https://registry.npmjs.org/loupe/-/loupe-2.3.6.tgz",
+      "integrity": "sha512-RaPMZKiMy8/JruncMU5Bt6na1eftNoo++R4Y+N2FrxkDVTrGvcyzFTsaGif4QTeKESheMGegbhw6iUAq+5A8zA==",
+      "dev": true,
+      "dependencies": {
+        "get-func-name": "^2.0.0"
+      }
+    },
     "node_modules/make-dir": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.1.0.tgz",
@@ -10164,15 +10174,16 @@
       "dev": true
     },
     "chai": {
-      "version": "4.3.4",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-4.3.4.tgz",
-      "integrity": "sha512-yS5H68VYOCtN1cjfwumDSuzn/9c+yza4f3reKXlE5rUg7SFcCEy90gJvydNgOYtblyf4Zi6jIWRnXOgErta0KA==",
+      "version": "4.3.7",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.3.7.tgz",
+      "integrity": "sha512-HLnAzZ2iupm25PlN0xFreAlBA5zaBSv3og0DdeGA4Ar6h6rJ3A0rolRUKJhSF2V10GZKDgWF/VmAEsNWjCRB+A==",
       "dev": true,
       "requires": {
         "assertion-error": "^1.1.0",
         "check-error": "^1.0.2",
-        "deep-eql": "^3.0.1",
+        "deep-eql": "^4.1.2",
         "get-func-name": "^2.0.0",
+        "loupe": "^2.3.1",
         "pathval": "^1.1.1",
         "type-detect": "^4.0.5"
       }
@@ -10639,9 +10650,9 @@
       "dev": true
     },
     "deep-eql": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-3.0.1.tgz",
-      "integrity": "sha512-+QeIQyN5ZuO+3Uk5DYh6/1eKO0m0YmJFGNmFHGACpf1ClL1nmlV/p4gNgbl2pJGxgXb4faqo6UE+M5ACEMyVcw==",
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-4.1.2.tgz",
+      "integrity": "sha512-gT18+YW4CcW/DBNTwAmqTtkJh7f9qqScu2qFVlx7kCoeY9tlBu9cUcr7+I+Z/noG8INehS3xQgLpTtd/QUTn4w==",
       "dev": true,
       "requires": {
         "type-detect": "^4.0.0"
@@ -12763,6 +12774,15 @@
         }
       }
     },
+    "loupe": {
+      "version": "2.3.6",
+      "resolved": "https://registry.npmjs.org/loupe/-/loupe-2.3.6.tgz",
+      "integrity": "sha512-RaPMZKiMy8/JruncMU5Bt6na1eftNoo++R4Y+N2FrxkDVTrGvcyzFTsaGif4QTeKESheMGegbhw6iUAq+5A8zA==",
+      "dev": true,
+      "requires": {
+        "get-func-name": "^2.0.0"
+      }
+    },
     "make-dir": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.1.0.tgz",