diff --git a/demo/package-lock.json b/demo/package-lock.json
index 2b7be94..1a53434 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -2399,6 +2399,7 @@
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+      "optional": true,
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@@ -4018,7 +4019,8 @@
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       "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
-      "dev": true
+      "dev": true,
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@@ -4099,9 +4101,9 @@
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-      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.1.1.tgz",
-      "integrity": "sha512-OddJJmAMN6czmPEtp1ScHFWq4RXzH1iWJFGL8CZ6UcopeBzCMjo4Slv0UoLW2hhny1/wsDowm6xCmBCWQ1azkA=="
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.1.2.tgz",
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@@ -4482,7 +4484,8 @@
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       "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
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-          "dev": true
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@@ -5822,13 +5826,15 @@
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           "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
-          "dev": true
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+          "optional": true,
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@@ -5845,19 +5851,22 @@
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-          "dev": true
+          "dev": true,
+          "optional": true
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           "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
-          "dev": true
+          "dev": true,
+          "optional": true
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           "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -5988,7 +5997,8 @@
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           "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=",
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -6002,6 +6012,7 @@
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           "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -6018,6 +6029,7 @@
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           "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -6026,13 +6038,15 @@
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           "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "2.3.5",
           "resolved": "https://registry.npmjs.org/minipass/-/minipass-2.3.5.tgz",
           "integrity": "sha512-Gi1W4k059gyRbyVUZQ4mEqLm0YIUiGYfvxhF6SIlk3ui1WVxMTGfGdQ2SInh3PDrRTVvPKgULkpJtT4RH10+VA==",
           "dev": true,
+          "optional": true,
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@@ -6053,6 +6067,7 @@
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           "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
           "dev": true,
+          "optional": true,
           "requires": {
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           }
@@ -6141,7 +6156,8 @@
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           "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=",
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -6155,6 +6171,7 @@
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           "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -6250,7 +6267,8 @@
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           "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
           "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
-          "dev": true
+          "dev": true,
+          "optional": true
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         "safer-buffer": {
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@@ -6292,6 +6310,7 @@
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           "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -6313,6 +6332,7 @@
           "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -6361,13 +6381,15 @@
           "version": "1.0.2",
           "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
           "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-          "dev": true
+          "dev": true,
+          "optional": true
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         "yallist": {
           "version": "3.0.3",
           "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.3.tgz",
           "integrity": "sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==",
-          "dev": true
+          "dev": true,
+          "optional": true
         }
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@@ -6376,6 +6398,7 @@
       "resolved": "https://registry.npmjs.org/fstream/-/fstream-1.0.12.tgz",
       "integrity": "sha512-WvJ193OHa0GHPEL+AycEJgxvBEwyfRkN1vhjca23OaPVMCaLCXTd5qAu82AjTcgP1UJmytkOKb63Ypde7raDIg==",
       "dev": true,
+      "optional": true,
       "requires": {
         "graceful-fs": "^4.1.2",
         "inherits": "~2.0.0",
@@ -6394,6 +6417,7 @@
       "resolved": "https://registry.npmjs.org/gauge/-/gauge-2.7.4.tgz",
       "integrity": "sha1-LANAXHU4w51+s3sxcCLjJfsBi/c=",
       "dev": true,
+      "optional": true,
       "requires": {
         "aproba": "^1.0.3",
         "console-control-strings": "^1.0.0",
@@ -6431,7 +6455,8 @@
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/get-stdin/-/get-stdin-4.0.1.tgz",
       "integrity": "sha1-uWjGsKBDhDJJAui/Gl3zJXmkUP4=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "get-stream": {
       "version": "4.1.0",
@@ -6679,7 +6704,8 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/has-unicode/-/has-unicode-2.0.1.tgz",
       "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "has-value": {
       "version": "1.0.0",
@@ -7591,7 +7617,8 @@
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/is-utf8/-/is-utf8-0.2.1.tgz",
       "integrity": "sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI=",
-      "dev": true
+      "dev": true,
+      "optional": true
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     "is-windows": {
       "version": "1.0.2",
@@ -10300,6 +10327,7 @@
       "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz",
       "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
       "dev": true,
+      "optional": true,
       "requires": {
         "graceful-fs": "^4.1.2",
         "parse-json": "^2.2.0",
@@ -10312,7 +10340,8 @@
           "version": "2.3.0",
           "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
-          "dev": true
+          "dev": true,
+          "optional": true
         }
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@@ -10570,7 +10599,8 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/map-obj/-/map-obj-1.0.1.tgz",
       "integrity": "sha1-2TPOuSBdgr3PSIb2dCvcK03qFG0=",
-      "dev": true
+      "dev": true,
+      "optional": true
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     "map-stream": {
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@@ -11297,6 +11327,7 @@
       "resolved": "https://registry.npmjs.org/npmlog/-/npmlog-4.1.2.tgz",
       "integrity": "sha512-2uUqazuKlTaSI/dC8AzicUck7+IrEaOnN/e0jd3Xtt1KcGpwx30v50mL7oPyr/h9bL3E4aZccVwpwP+5W9Vjkg==",
       "dev": true,
+      "optional": true,
       "requires": {
         "are-we-there-yet": "~1.1.2",
         "console-control-strings": "~1.1.0",
@@ -12620,6 +12651,7 @@
       "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-1.1.0.tgz",
       "integrity": "sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=",
       "dev": true,
+      "optional": true,
       "requires": {
         "load-json-file": "^1.0.0",
         "normalize-package-data": "^2.3.2",
@@ -12631,6 +12663,7 @@
           "resolved": "https://registry.npmjs.org/path-type/-/path-type-1.1.0.tgz",
           "integrity": "sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=",
           "dev": true,
+          "optional": true,
           "requires": {
             "graceful-fs": "^4.1.2",
             "pify": "^2.0.0",
@@ -12641,7 +12674,8 @@
           "version": "2.3.0",
           "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
-          "dev": true
+          "dev": true,
+          "optional": true
         }
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@@ -12650,6 +12684,7 @@
       "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-1.0.1.tgz",
       "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
       "dev": true,
+      "optional": true,
       "requires": {
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         "read-pkg": "^1.0.0"
@@ -12660,6 +12695,7 @@
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           "integrity": "sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=",
           "dev": true,
+          "optional": true,
           "requires": {
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             "pinkie-promise": "^2.0.0"
@@ -12670,6 +12706,7 @@
           "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-2.1.0.tgz",
           "integrity": "sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=",
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -14144,6 +14181,7 @@
       "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-2.0.0.tgz",
       "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
       "dev": true,
+      "optional": true,
       "requires": {
         "is-utf8": "^0.2.0"
       }
@@ -16126,6 +16164,7 @@
       "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.3.tgz",
       "integrity": "sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==",
       "dev": true,
+      "optional": true,
       "requires": {
         "string-width": "^1.0.2 || 2"
       }
diff --git a/demo/package.json b/demo/package.json
index cc1cf54..abdb581 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -31,7 +31,7 @@
     "@ng-bootstrap/ng-bootstrap": "4.1.1",
     "@stackblitz/sdk": "^1.2.0",
     "bootstrap": "^4.2.1",
-    "core-js": "^3.1.1",
+    "core-js": "^3.1.2",
     "font-awesome": "^4.7.0",
     "hammerjs": "^2.0.8",
     "ngx-markdown": "^7.1.5",
diff --git a/package-lock.json b/package-lock.json
index b3c4798..d791afe 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@angular-material-extensions/core",
-  "version": "0.0.1",
+  "version": "0.1.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -7159,6 +7159,12 @@
         "regenerator-runtime": "^0.10.0"
       },
       "dependencies": {
+        "core-js": {
+          "version": "2.6.8",
+          "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.6.8.tgz",
+          "integrity": "sha512-RWlREFU74TEkdXzyl1bka66O3kYp8jeTXrvJZDzVVMH8AiHUSOFpL1yfhQJ+wHocAm1m+4971W1PPzfLuCv1vg==",
+          "dev": true
+        },
         "regenerator-runtime": {
           "version": "0.10.5",
           "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz",
@@ -7192,6 +7198,12 @@
         "source-map-support": "^0.4.15"
       },
       "dependencies": {
+        "core-js": {
+          "version": "2.6.8",
+          "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.6.8.tgz",
+          "integrity": "sha512-RWlREFU74TEkdXzyl1bka66O3kYp8jeTXrvJZDzVVMH8AiHUSOFpL1yfhQJ+wHocAm1m+4971W1PPzfLuCv1vg==",
+          "dev": true
+        },
         "source-map": {
           "version": "0.5.7",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
@@ -7219,6 +7231,12 @@
         "regenerator-runtime": "^0.11.0"
       },
       "dependencies": {
+        "core-js": {
+          "version": "2.6.8",
+          "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.6.8.tgz",
+          "integrity": "sha512-RWlREFU74TEkdXzyl1bka66O3kYp8jeTXrvJZDzVVMH8AiHUSOFpL1yfhQJ+wHocAm1m+4971W1PPzfLuCv1vg==",
+          "dev": true
+        },
         "regenerator-runtime": {
           "version": "0.11.1",
           "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz",
@@ -9030,9 +9048,9 @@
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     "core-js": {
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-      "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.6.7.tgz",
-      "integrity": "sha512-ydmsQxDVH7lDpYoirXft8S83ddKKfdsrsmWhtyj7xafXVLbLhKOyfD7kAi2ueFfeP7m9rNavjW59O3hLLzzC5A==",
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.1.2.tgz",
+      "integrity": "sha512-3poRGjbu56leCtZCZCzCgQ7GcKOflDFnjWIepaPFUsM0IXUBrne10sl3aa2Bkcz3+FjRdIxBe9dAMhIJmEnQNA==",
       "dev": true
     },
     "core-util-is": {
@@ -11447,7 +11465,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -11468,12 +11487,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -11488,17 +11509,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -11615,7 +11639,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -11627,6 +11652,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -11641,6 +11667,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -11648,12 +11675,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -11672,6 +11701,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -11752,7 +11782,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -11764,6 +11795,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -11849,7 +11881,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -11885,6 +11918,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -11904,6 +11938,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -11947,12 +11982,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
diff --git a/package.json b/package.json
index e64f411..19dc308 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "commitplease": "^3.2.0",
     "conventional-github-releaser": "2.0.2",
     "copy-webpack-plugin": "^5.0.3",
-    "core-js": "^2.6.7",
+    "core-js": "^3.1.2",
     "css-loader": "^2.1.0",
     "cssnano": "^4.1.8",
     "del": "^3.0.0",