diff --git a/package-lock.json b/package-lock.json
index 0d4b214..9b9bd6e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2836,9 +2836,9 @@
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     },
     "d3-format": {
-      "version": "1.4.3",
-      "resolved": "https://registry.npmjs.org/d3-format/-/d3-format-1.4.3.tgz",
-      "integrity": "sha512-mm/nE2Y9HgGyjP+rKIekeITVgBtX97o1nrvHCWX8F/yBYyevUTvu9vb5pUnKwrcSw7o7GuwMOWjS9gFDs4O+uQ==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/d3-format/-/d3-format-3.0.1.tgz",
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     "d3-geo": {
@@ -2867,31 +2867,45 @@
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     "d3-scale": {
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-      "resolved": "https://registry.npmjs.org/d3-scale/-/d3-scale-3.2.1.tgz",
-      "integrity": "sha512-huz5byJO/6MPpz6Q8d4lg7GgSpTjIZW/l+1MQkzKfu2u8P6hjaXaStOpmyrD6ymKoW87d2QVFCKvSjLwjzx/rA==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/d3-scale/-/d3-scale-4.0.0.tgz",
+      "integrity": "sha512-foHQYKpWQcyndH1CGoHdUC4PECxTxonzwwBXGT8qu+Drb1FIc6ON6dG2P5f4hRRMkLiIKeWK7iFtdznDUrnuPQ==",
       "dev": true,
       "requires": {
-        "d3-array": "1.2.0 - 2",
-        "d3-format": "1",
-        "d3-interpolate": "^1.2.0",
-        "d3-time": "1",
-        "d3-time-format": "2"
+        "d3-array": "2.10.0 - 3",
+        "d3-format": "1 - 3",
+        "d3-interpolate": "1.2.0 - 3",
+        "d3-time": "2.1.1 - 3",
+        "d3-time-format": "2 - 4"
+      },
+      "dependencies": {
+        "d3-array": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/d3-array/-/d3-array-3.0.1.tgz",
+          "integrity": "sha512-l3Bh5o8RSoC3SBm5ix6ogaFW+J6rOUm42yOtZ2sQPCEvCqUMepeX7zgrlLLGIemxgOyo9s2CsWEidnLv5PwwRw==",
+          "dev": true,
+          "requires": {
+            "internmap": "1 - 2"
+          }
+        }
       }
     },
     "d3-time": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/d3-time/-/d3-time-1.1.0.tgz",
-      "integrity": "sha512-Xh0isrZ5rPYYdqhAVk8VLnMEidhz5aP7htAADH6MfzgmmicPkTo8LhkLxci61/lCB7n7UmE3bN0leRt+qvkLxA==",
-      "dev": true
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/d3-time/-/d3-time-3.0.0.tgz",
+      "integrity": "sha512-zmV3lRnlaLI08y9IMRXSDshQb5Nj77smnfpnd2LrBa/2K281Jijactokeak14QacHs/kKq0AQ121nidNYlarbQ==",
+      "dev": true,
+      "requires": {
+        "d3-array": "2 - 3"
+      }
     },
     "d3-time-format": {
-      "version": "2.2.3",
-      "resolved": "https://registry.npmjs.org/d3-time-format/-/d3-time-format-2.2.3.tgz",
-      "integrity": "sha512-RAHNnD8+XvC4Zc4d2A56Uw0yJoM7bsvOlJR33bclxq399Rak/b9bhvu/InjxdWhPtkgU53JJcleJTGkNRnN6IA==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/d3-time-format/-/d3-time-format-4.0.0.tgz",
+      "integrity": "sha512-nzaCwlj+ZVBIlFuVOT1RmU+6xb/7D5IcnhHzHQcBgS/aTa5K9fWZNN5LCXA27LgF5WxoSNJqKBbLcGMtM6Ca6A==",
       "dev": true,
       "requires": {
-        "d3-time": "1"
+        "d3-time": "1 - 3"
       }
     },
     "dashdash": {
@@ -4245,6 +4259,12 @@
         }
       }
     },
+    "internmap": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/internmap/-/internmap-2.0.1.tgz",
+      "integrity": "sha512-Ujwccrj9FkGqjbY3iVoxD1VV+KdZZeENx0rphrtzmRXbFvkFO88L80BL/zeSIguX/7T+y8k04xqtgWgS5vxwxw==",
+      "dev": true
+    },
     "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..07a43df 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "@babel/core": "^7.11.4",
     "@babel/preset-env": "^7.11.0",
     "d3-geo": "^2.0.1",
-    "d3-scale": "^3.2.1",
+    "d3-scale": "^4.0.0",
     "eslint": "^6.8.0",
     "eslint-config-standard": "^14.1.1",
     "eslint-plugin-import": "^2.22.0",