diff --git a/package-lock.json b/package-lock.json
index 0d4b214..6e94e46 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2826,9 +2826,12 @@
       }
     },
     "d3-array": {
-      "version": "2.4.0",
-      "resolved": "https://registry.npmjs.org/d3-array/-/d3-array-2.4.0.tgz",
-      "integrity": "sha512-KQ41bAF2BMakf/HdKT865ALd4cgND6VcIztVQZUTt0+BH3RWy6ZYnHghVXf6NFjt2ritLr8H1T8LreAAlfiNcw=="
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/d3-array/-/d3-array-3.0.1.tgz",
+      "integrity": "sha512-l3Bh5o8RSoC3SBm5ix6ogaFW+J6rOUm42yOtZ2sQPCEvCqUMepeX7zgrlLLGIemxgOyo9s2CsWEidnLv5PwwRw==",
+      "requires": {
+        "internmap": "1 - 2"
+      }
     },
     "d3-color": {
       "version": "1.4.0",
@@ -2877,6 +2880,23 @@
         "d3-interpolate": "^1.2.0",
         "d3-time": "1",
         "d3-time-format": "2"
+      },
+      "dependencies": {
+        "d3-array": {
+          "version": "2.12.1",
+          "resolved": "https://registry.npmjs.org/d3-array/-/d3-array-2.12.1.tgz",
+          "integrity": "sha512-B0ErZK/66mHtEsR1TkPEEkwdy+WDesimkM5gpZr5Dsg54BiTA5RXtYW5qTLIAcekaS9xfZrzBLF/OAkB3Qn1YQ==",
+          "dev": true,
+          "requires": {
+            "internmap": "^1.0.0"
+          }
+        },
+        "internmap": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/internmap/-/internmap-1.0.1.tgz",
+          "integrity": "sha512-lDB5YccMydFBtasVtxnZ3MRBHuaoE8GKsppq+EchKL2U4nK/DmEpPHNH8MZe5HkMtpSiTSOZwfN0tzYjO/lJEw==",
+          "dev": true
+        }
       }
     },
     "d3-time": {
@@ -4245,6 +4265,11 @@
         }
       }
     },
+    "internmap": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/internmap/-/internmap-2.0.1.tgz",
+      "integrity": "sha512-Ujwccrj9FkGqjbY3iVoxD1VV+KdZZeENx0rphrtzmRXbFvkFO88L80BL/zeSIguX/7T+y8k04xqtgWgS5vxwxw=="
+    },
     "invariant": {
       "version": "2.2.4",
       "resolved": "https://registry.npmjs.org/invariant/-/invariant-2.2.4.tgz",
diff --git a/package.json b/package.json
index a82ddaf..d8a42d7 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "svelte": "^3.24.1"
   },
   "dependencies": {
-    "d3-array": "^2.4.0",
+    "d3-array": "^3.0.1",
     "d3-interpolate": "^1.4.0",
     "earcut": "^2.2.2",
     "topojson-client": "^3.1.0"