diff --git a/package-lock.json b/package-lock.json
index 4e31134..dd22bd4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1084,11 +1084,6 @@
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@@ -3798,10 +3599,16 @@
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@@ -4894,11 +4687,6 @@
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                     }
@@ -9002,6 +8361,7 @@
                     "version": "1.0.2",
                     "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
                     "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+                    "dev": true,
                     "requires": {
                         "code-point-at": "^1.0.0",
                         "is-fullwidth-code-point": "^1.0.0",
@@ -9012,6 +8372,7 @@
                     "version": "3.0.1",
                     "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
                     "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+                    "dev": true,
                     "requires": {
                         "ansi-regex": "^2.0.0"
                     }
@@ -9021,7 +8382,8 @@
         "wrappy": {
             "version": "1.0.2",
             "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-            "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+            "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+            "dev": true
         },
         "ws": {
             "version": "5.2.2",
@@ -9044,11 +8406,6 @@
             "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
             "dev": true
         },
-        "y18n": {
-            "version": "4.0.0",
-            "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
-            "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w=="
-        },
         "yalc": {
             "version": "1.0.0-pre.34",
             "resolved": "https://registry.npmjs.org/yalc/-/yalc-1.0.0-pre.34.tgz",
@@ -9202,34 +8559,6 @@
             "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
             "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
             "dev": true
-        },
-        "yargs": {
-            "version": "12.0.5",
-            "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.5.tgz",
-            "integrity": "sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==",
-            "requires": {
-                "cliui": "^4.0.0",
-                "decamelize": "^1.2.0",
-                "find-up": "^3.0.0",
-                "get-caller-file": "^1.0.1",
-                "os-locale": "^3.0.0",
-                "require-directory": "^2.1.1",
-                "require-main-filename": "^1.0.1",
-                "set-blocking": "^2.0.0",
-                "string-width": "^2.0.0",
-                "which-module": "^2.0.0",
-                "y18n": "^3.2.1 || ^4.0.0",
-                "yargs-parser": "^11.1.1"
-            }
-        },
-        "yargs-parser": {
-            "version": "11.1.1",
-            "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
-            "integrity": "sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==",
-            "requires": {
-                "camelcase": "^5.0.0",
-                "decamelize": "^1.2.0"
-            }
         }
     }
 }
diff --git a/package.json b/package.json
index 09eba76..58be01a 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
         "node": ">=8.9.0"
     },
     "dependencies": {
-        "vega-embed": "^3.30.0"
+        "vega-embed": "^6.7.0"
     },
     "scripts": {
         "build-prod": "cross-env NODE_ENV=production parcel build src/index.html --no-minify --public-url ./",