diff --git a/package-lock.json b/package-lock.json
index ac67077..48bdc2e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10089,9 +10089,9 @@
       }
     },
     "highcharts": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/highcharts/-/highcharts-6.2.0.tgz",
-      "integrity": "sha512-A4E89MA+kto8giic7zyLU6ZxfXnVeCUlKOyzFsah3+n4BROx4bgonl92KIBtwLud/mIWir8ahqhuhe2by9LakQ=="
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/highcharts/-/highcharts-9.0.0.tgz",
+      "integrity": "sha512-MJCtidFytGSQvsV3OEM+vFTLpjUcp7jmFpLn8h3oL4WKp0gxUOQg6Nw00sqMWGdiadst0gOZO4804zynTcYjZQ=="
     },
     "hmac-drbg": {
       "version": "1.0.1",
@@ -12329,7 +12329,7 @@
     },
     "onetime": {
       "version": "1.1.0",
-      "resolved": "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
       "integrity": "sha1-ofeDj4MUxRbwXs78vEzP4EtO14k=",
       "dev": true
     },
diff --git a/package.json b/package.json
index c971018..eceeabc 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "node": "10.*"
   },
   "dependencies": {
-    "highcharts": "^6.2.0",
+    "highcharts": "^9.0.0",
     "javascript-time-ago": "^2.0.4",
     "ol": "^6.1.1",
     "proj4": "^2.6.0"