diff --git a/package-lock.json b/package-lock.json
index 77121fb..1047ad9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1187,15 +1187,6 @@
         "@types/d3-path": "*"
       }
     },
-    "@types/date-fns": {
-      "version": "2.6.0",
-      "resolved": "https://registry.npmjs.org/@types/date-fns/-/date-fns-2.6.0.tgz",
-      "integrity": "sha1-sGLKRlYgApCb4MY6ZGftFzE2rME=",
-      "dev": true,
-      "requires": {
-        "date-fns": "*"
-      }
-    },
     "@types/jss": {
       "version": "9.5.8",
       "resolved": "https://registry.npmjs.org/@types/jss/-/jss-9.5.8.tgz",
@@ -1299,9 +1290,9 @@
       "dev": true
     },
     "acorn": {
-      "version": "5.7.3",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
-      "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==",
+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+      "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==",
       "dev": true
     },
     "acorn-globals": {
@@ -1315,9 +1306,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "6.1.1",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz",
-          "integrity": "sha512-jPTiwtOxaHNaAPg/dmrJ/beuzLRnXtB0kQPQ8JpotKJgTB6rX6c8mlf315941pyjBSaPg8NHXS9fhP4u17DpGA==",
+          "version": "6.4.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+          "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
           "dev": true
         }
       }