diff --git a/package-lock.json b/package-lock.json
index cbe59d0..c5ba01e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3444,9 +3444,9 @@
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     },
     "d3-color": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/d3-color/-/d3-color-1.4.0.tgz",
-      "integrity": "sha512-TzNPeJy2+iEepfiL92LAAB7fvnp/dV2YwANPVHdDWmYMm23qIJBYww3qT8I8C1wXrmrg4UWs7BKc2tKIgyjzHg=="
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/d3-color/-/d3-color-3.1.0.tgz",
+      "integrity": "sha512-zg/chbXyeBtMQ1LbD/WSoW2DpC3I0mpmPdW+ynRTj/x2DAWYrIY7qeZIHidozwV24m4iavr15lNwIwLxRmOxhA=="
     },
     "d3-dispatch": {
       "version": "1.0.6",
@@ -3464,16 +3464,16 @@
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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": "3.1.0",
+      "resolved": "https://registry.npmjs.org/d3-format/-/d3-format-3.1.0.tgz",
+      "integrity": "sha512-YyUI6AEuY/Wpt8KWLgZHsIU86atmikuoOmCfommt0LYHiQSPjvX2AcFc38PX0CBpr2RCyZhjex+NS/LPOv6YqA=="
     },
     "d3-interpolate": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/d3-interpolate/-/d3-interpolate-1.4.0.tgz",
-      "integrity": "sha512-V9znK0zc3jOPV4VD2zZn0sDhZU3WAE2bmlxdIwwQPPzPjvyLkd8B3JUVdS1IDUFDkWZ72c9qnv1GK2ZagTZ8EA==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/d3-interpolate/-/d3-interpolate-3.0.1.tgz",
+      "integrity": "sha512-3bYs1rOD33uo8aqJfKP3JWPAibgw8Zm2+L9vBKEHJ2Rg+viTR7o5Mmv5mZcieN+FRYaAOWX5SJATX6k1PWz72g==",
       "requires": {
-        "d3-color": "1"
+        "d3-color": "1 - 3"
       }
     },
     "d3-quadtree": {
@@ -3482,28 +3482,51 @@
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     },
     "d3-scale": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/d3-scale/-/d3-scale-3.2.1.tgz",
-      "integrity": "sha512-huz5byJO/6MPpz6Q8d4lg7GgSpTjIZW/l+1MQkzKfu2u8P6hjaXaStOpmyrD6ymKoW87d2QVFCKvSjLwjzx/rA==",
-      "requires": {
-        "d3-array": "1.2.0 - 2",
-        "d3-format": "1",
-        "d3-interpolate": "^1.2.0",
-        "d3-time": "1",
-        "d3-time-format": "2"
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/d3-scale/-/d3-scale-4.0.2.tgz",
+      "integrity": "sha512-GZW464g1SH7ag3Y7hXjf8RoUuAFIqklOAq3MRl4OaWabTFJY9PN/E1YklhXLh+OQ3fM9yS2nOkCoS+WLZ6kvxQ==",
+      "requires": {
+        "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": "3.2.0",
+          "resolved": "https://registry.npmjs.org/d3-array/-/d3-array-3.2.0.tgz",
+          "integrity": "sha512-3yXFQo0oG3QCxbF06rMPFyGRMGJNS7NvsV1+2joOjbBE+9xvWQ8+GcMJAjRCzw06zQ3/arXeJgbPYcjUCuC+3g==",
+          "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=="
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/d3-time/-/d3-time-3.0.0.tgz",
+      "integrity": "sha512-zmV3lRnlaLI08y9IMRXSDshQb5Nj77smnfpnd2LrBa/2K281Jijactokeak14QacHs/kKq0AQ121nidNYlarbQ==",
+      "requires": {
+        "d3-array": "2 - 3"
+      },
+      "dependencies": {
+        "d3-array": {
+          "version": "3.2.0",
+          "resolved": "https://registry.npmjs.org/d3-array/-/d3-array-3.2.0.tgz",
+          "integrity": "sha512-3yXFQo0oG3QCxbF06rMPFyGRMGJNS7NvsV1+2joOjbBE+9xvWQ8+GcMJAjRCzw06zQ3/arXeJgbPYcjUCuC+3g==",
+          "requires": {
+            "internmap": "1 - 2"
+          }
+        }
+      }
     },
     "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": "4.1.0",
+      "resolved": "https://registry.npmjs.org/d3-time-format/-/d3-time-format-4.1.0.tgz",
+      "integrity": "sha512-dJxPBlzC7NugB2PDLwo9Q8JiTR3M3e4/XANkreKSUxF8vvXKqm1Yfq4Q5dl8budlunRVlUUaDUgFt7eA8D6NLg==",
       "requires": {
-        "d3-time": "1"
+        "d3-time": "1 - 3"
       }
     },
     "d3-timer": {
@@ -4592,6 +4615,11 @@
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
     },
+    "internmap": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/internmap/-/internmap-2.0.3.tgz",
+      "integrity": "sha512-5Hh7Y1wQbvY5ooGgPbDaL5iYLAPzMTUrjMulskHLH6wnv/A+1q5rgEaiuqEjB+oxGXIVZs1FF+R/KPN3ZSQYYg=="
+    },
     "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 9df3625..923a363 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "body-scroll-lock": "^3.0.3",
     "classnames": "^2.2.6",
     "d3-force": "^2.0.1",
-    "d3-scale": "^3.2.1",
+    "d3-scale": "^4.0.2",
     "debug": "^4.1.0",
     "isomorphic-fetch": "^2.2.1",
     "leaflet": "^1.6.0",